U.S. patent application number 14/930702 was filed with the patent office on 2017-05-04 for methods for performing radio measurements and mobile terminal devices.
The applicant listed for this patent is Intel IP Corporation. Invention is credited to Rishav Dev, Mahammad Gous Shaikh.
Application Number | 20170127305 14/930702 |
Document ID | / |
Family ID | 57394319 |
Filed Date | 2017-05-04 |
United States Patent
Application |
20170127305 |
Kind Code |
A1 |
Dev; Rishav ; et
al. |
May 4, 2017 |
METHODS FOR PERFORMING RADIO MEASUREMENTS AND MOBILE TERMINAL
DEVICES
Abstract
A mobile terminal device may include a first SIM, a second SIM,
a radio processing circuit and a baseband processing circuit
configured to interact with the radio processing circuit. The
baseband processing circuit may be configured to identify one or
more first measurement targets of a first radio measurement of the
first SIM, identify one or more common measurement results from one
or more measurement results of a second radio measurement of the
second SIM, wherein at least one of the one or more common
measurement results corresponds to a measurement target of the one
or more first measurement targets of the first radio measurement,
provide the one or more common measurement results to the first
radio measurement as one or more measurement results of the first
radio measurement, and perform mobility operations with the one or
more measurement results of the first radio measurement or the one
or more measurement results of the second radio measurement.
Inventors: |
Dev; Rishav; (Bangalore,
IN) ; Shaikh; Mahammad Gous; (Bangalore, IN) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
Intel IP Corporation |
Santa Clara |
CA |
US |
|
|
Family ID: |
57394319 |
Appl. No.: |
14/930702 |
Filed: |
November 3, 2015 |
Current U.S.
Class: |
1/1 |
Current CPC
Class: |
H04W 24/08 20130101;
H04W 24/10 20130101; H04W 36/0094 20130101; H04W 48/20 20130101;
H04L 5/0073 20130101; H04W 8/183 20130101; H04W 36/00835
20180801 |
International
Class: |
H04W 24/08 20060101
H04W024/08 |
Claims
1. A mobile terminal device comprising a first subscriber identity
module (SIM), a second SIM, a radio processing circuit and a
baseband processing circuit configured to interact with the radio
processing circuit, the baseband processing circuit configured to:
identify one or more first inter-radio access technology
(inter-RAT) measurement targets of a first radio measurement of a
master RAT of the first SIM; identify one or more common
measurement results from one or more measurement results of a
second radio measurement of the second SIM, wherein at least one of
the one or more common measurement results corresponds to a
measurement target of the one or more first measurement targets of
the first radio measurement; provide the one or more common
measurement results to the first radio measurement as one or more
inter-RAT measurements results of the first radio measurement; and
perform mobility operations with the one or more measurement
results of the first radio measurement or the one or more
measurement results of the second radio measurement.
2. The mobile terminal device of claim 1, wherein performing
mobility operations with the one or more measurement results of the
first radio measurement or the one or more measurement results of
the second radio measurement comprises performing at least one of
cell selection, cell reselection, handover, or measurement report
transmission with the one or more measurement results of the first
radio measurement or the one or more measurement results of the
second radio measurement.
3. The mobile terminal device of claim 1, wherein the second radio
measurement is a radio measurement of a master RAT of the second
SIM.
4. The mobile terminal device of claim 1, wherein the measurement
results of the second radio measurement of the second SIM comprise
one or more intra-frequency radio measurement results or one or
more inter-frequency radio measurement results.
5. The mobile terminal device of claim 1, wherein the second radio
measurement is an intra-frequency or an inter-frequency radio
measurement of a master RAT of the second SIM, and wherein the
master RAT of the first SIM is a different radio access technology
than the master RAT of the second SIM.
6. The mobile terminal device of claim 1, wherein the baseband
processing circuit is further configured to: identify one or more
second measurement targets of the second radio measurement of the
second SIM; and execute the second radio measurement on the one or
more second measurement targets to obtain the one or more
measurement results of the second radio measurement.
7. The mobile terminal device of claim 1, wherein the one or more
first measurement targets comprise one or more cells targeted for
measurement or one or more carrier frequencies targeted for
measurement.
8. The mobile terminal device of claim 7, wherein performing
mobility operations with the one or more measurement results of the
first radio measurement or the one or more measurement results of
the second radio measurement comprises performing at least one of
cell selection to a cell of the one or more cells, performing cell
reselection to a cell of the one or more cells, performing handover
to a cell of the one or more cells, or transmitting a measurement
report for a cell of the one or more cells.
9. The mobile terminal device of claim 1, wherein the baseband
processing circuit is further configured to: identify one or more
second measurement targets of the second radio measurement; execute
the second radio measurement on one or more of the first radio
measurement targets excluded from the one or more second
measurement targets to obtain one or more remaining measurement
results; and provide the one or more remaining measurement results
to the first radio measurement as one or more measurement results
of the first radio measurement.
10. A method for performing radio measurements of a first
subscriber identity module (SIM), the method comprising:
identifying one or more first measurement targets of a first radio
measurement of the first SIM; identifying one or more common
measurement results from one or more measurement results of a
second radio measurement of a second SIM, wherein at least one of
the one or more common measurement results corresponds to a
measurement target of the one or more first measurement targets of
the first radio measurement; providing the one or more common
measurement results to the first radio measurement as one or more
measurement results of the first radio measurement; and performing
mobility operations with the one or more measurement results of the
first radio measurement or the one or more measurement results of
the second radio measurement.
11. The method of claim 10, wherein performing mobility operations
with the one or more measurement results of the first radio
measurement or the one or more measurement results of the second
radio measurement comprises performing at least one of cell
selection, cell reselection, handover, or measurement report
transmission with the one or more measurement results of the first
radio measurement or the one or more measurement results of the
second radio measurement.
12. The method of claim 10, wherein providing the one or more
common measurement results to the first radio measurement as one or
more measurement results of the first radio measurement comprises:
providing the one or more common measurement results to the first
radio measurement as one or more inter-RAT measurement results of
the first radio measurement.
13. The method of claim 10, wherein the first radio measurement is
an inter-radio access technology (inter-RAT) radio measurement for
a master RAT of the first SIM, and wherein providing the one or
more common measurement results to the first radio measurement as
one or more measurement results of the first radio measurement
comprises: providing the one or more common measurement results to
the first radio measurement as one or more inter-RAT measurement
results of the first radio measurement.
14. The method of claim 13, wherein the second radio measurement is
an intra-frequency radio measurement or an inter-frequency radio
measurement of a master RAT of the second SIM, and wherein the
master RAT of the first SIM is a different radio access technology
than the master RAT of the second SIM.
15. The method of claim 10, further comprising: identifying one or
more second measurement targets of the second radio measurement of
the second SIM; and executing the second radio measurement on the
one or more second measurement targets to obtain the one or more
measurement results of the second radio measurement.
16. The method of claim 10, wherein the one or more first
measurement targets comprise one or more cells targeted for
measurement or one or more carrier frequencies targeted for
measurement.
17. The method of claim 16, wherein performing the mobility
operations with the one or more measurement results of the first
radio measurement or the one or more measurement results of the
second radio measurement comprises performing at least one of cell
selection to a cell of the one or more cells, performing cell
reselection to a cell of the one or more cells, performing a
handover to a cell of the one or more cells, or transmitting a
measurement report for a cell of the one or more cells.
18. The method of claim 10, further comprising: identifying one or
more second measurement targets of the second radio measurement;
executing the second radio measurement on one or more of the first
measurement targets excluded from the one or more second
measurement targets to obtain one or more remaining measurement
results; and providing the one or more remaining measurement
results to the first radio measurement as one or more measurement
results of the first radio measurement.
19. The method of claim 10, wherein the first radio measurement is
an intra-frequency radio measurement or an inter-frequency radio
measurement of a master RAT of the second SIM.
20. A method for performing radio measurements of a first
subscriber identity module (SIM), the method comprising:
identifying one or more first inter-RAT measurement targets of a
first radio measurement of a master RAT of the first SIM;
identifying one or more common measurement results from one or more
measurement results of a second radio measurement of a second SIM,
wherein at least one of the one or more common measurement results
corresponds to an inter-RAT measurement target of the one or more
first inter-RAT measurement targets of the first radio measurement;
providing the one or more common measurement results to the first
radio measurement as one or more inter-RAT measurement results of
the first radio measurement; and performing mobility operations
with the one or more measurement results of the first radio
measurement or the one or more measurement results of the second
radio measurement.
21. The method of claim 20, wherein performing mobility operations
with the one or more measurement results of the first radio
measurement or the one or more measurement results of the second
radio measurement comprises performing at least one of cell
selection, cell reselection, handover, or measurement report
transmission with the one or more measurement results of the first
radio measurement or the one or more measurement results of the
second radio measurement.
22. The method of claim 20, wherein the one or more measurement
results of the second radio measurement of the second SIM comprise
one or more intra-frequency radio measurement results or one or
more inter-frequency radio measurement results.
23. A mobile terminal device comprising a first SIM, a second SIM,
a radio processing circuit and a baseband processing circuit
configured to interact with the radio processing circuit, the
baseband processing circuit configured to: identify one or more
first measurement targets of a first radio measurement of the first
SIM; identify one or more common measurement results from one or
more measurement results of a second radio measurement of the
second SIM, wherein at least one of the one or more common
measurement results corresponds to a measurement target of the one
or more first measurement targets of the first radio measurement;
provide the one or more common measurement results to the first
radio measurement as one or more measurement results of the first
radio measurement; and perform mobility operations with the one or
more measurement results of the first radio measurement or the one
or more measurement results of the second radio measurement.
24. The mobile terminal device of claim 23, wherein performing
mobility operations with the one or more measurement results of the
first radio measurement or the one or more measurement results of
the second radio measurement comprises performing at least one of
cell selection, cell reselection, handover, or measurement report
transmission with the one or more measurement results of the first
radio measurement or the one or more measurement results of the
second radio measurement.
Description
TECHNICAL FIELD
[0001] Various embodiments relate generally to methods for
performing radio measurements and mobile terminal devices.
BACKGROUND
[0002] Mobile terminals with multiple Subscriber Identity Modules
(SIMs) have increased in popularity in recent years. The complexity
of multi-SIM designs may depend on the flexibility in operation
desired for each included SIM. For example, multi-SIM designs known
as Single Receive Dual-SIM Dual-Standby (SR-DSDS) may incorporate
two separate SIMs but may only provide a single transceiver system.
As a result, only one SIM may be able to actively transmit and
receive voice or packet data at a given time. Both SIMs may still
be able to operate passively (hence "standby") and may utilize a
time-multiplexing scheme in which both SIMs alternatively share use
of the transceiver.
[0003] Dual-Receive Dual-SIM Dual-Standby (DR-DSDS) designs may
allow both SIMs to concurrently receive data by incorporating two
separate receiver subsystems (i.e. receive chain). Each SIM may
thus be granted exclusive use of one of the receiver subsystems and
accordingly may receive data without interruption from the other
SIM. However, DR-DSDS designs may provide only a single transmitter
subsystem, and a result only one SIM may be able to transmit data
at a given time.
[0004] Dual-SIM Dual-Active (DSDA) designs may expand on DR-DSDS
multi-SIM designs by providing two separate transceiver systems.
Each SIM may thus be granted exclusive access to one of the
transceiver systems and may be able to both transmit and receive
data independently in parallel with the other SIM.
BRIEF DESCRIPTION OF THE DRAWINGS
[0005] In the drawings, like reference characters generally refer
to the same parts throughout the different views. The drawings are
not necessarily to scale, emphasis instead generally being placed
upon illustrating the principles of the invention. In the following
description, various embodiments of the invention are described
with reference to the following drawings, in which:
[0006] FIG. 1 shows a block diagram illustrating an internal
configuration of a mobile terminal;
[0007] FIG. 2 shows a block diagram illustrating an internal
configuration of a baseband modem;
[0008] FIG. 3 shows a block diagram illustrating an internal
configuration master and slave RATs within a baseband modem;
[0009] FIG. 4 shows a message sequence chart illustrating the
operation of a measurement manager in a first exemplary
scenario;
[0010] FIG. 5 shows a message sequence chart illustrating the
operation of a measurement manager in a second exemplary
scenario;
[0011] FIG. 6 shows a message sequence chart illustrating the
operation of a measurement manager in a third exemplary
scenario;
[0012] FIG. 7 shows a timing chart illustrating the operation of a
measurement manager in a fourth exemplary scenario;
[0013] FIG. 8 shows a timing chart illustrating the operation of a
measurement manager in a fifth exemplary scenario;
[0014] FIGS. 9A and 9B show a timing chart illustrating the
operation of a measurement manager in a sixth and seventh exemplary
scenario;
[0015] FIG. 10 shows a flow chart detailing the operation of a
measurement manager;
[0016] FIG. 11 shows a flow chart illustrating a first method for
performing radio measurements; and
[0017] FIG. 12 shows a flow chart illustrating a second method for
performing radio measurements.
DESCRIPTION
[0018] The following detailed description refers to the
accompanying drawings that show, by way of illustration, specific
details and embodiments in which the invention may be
practiced.
[0019] The word "exemplary" is used herein to mean "serving as an
example, instance, or illustration". Any embodiment or design
described herein as "exemplary" is not necessarily to be construed
as preferred or advantageous over other embodiments or designs.
[0020] The words "plural" and "multiple" in the description and the
claims, if any, are used to expressly refer to a quantity greater
than one. Accordingly, any phrases explicitly invoking the
aforementioned words (e.g. "a plurality of [objects]", "multiple
[objects]") referring to a quantity of objects is intended to
expressly refer more than one of the said objects. The terms
"group", "set", "collection", "series", "sequence", "grouping",
"selection", etc., and the like in the description and in the
claims, if any, are used to refer to a quantity equal to or greater
than one, i.e. one or more. Accordingly, the phrases "a group of
[objects]", "a set of [objects]", "a collection of [objects]", "a
series of [objects]", "a sequence of [objects]", "a grouping of
[objects]", "a selection of [objects]", "[object] group", "[object]
set", "[object] collection", "[object] series", "[object]
sequence", "[object] grouping", "[object] selection", etc., used
herein in relation to a quantity of objects is intended to refer to
a quantity of one or more of said objects. It is appreciated that
unless directly referred to with an explicitly stated plural
quantity (e.g. "two [objects]" "three of the [objects]", "ten or
more [objects]", "at least four [objects]", etc.) or express use of
the words "plural", "multiple", or similar phrases, references to
quantities of objects are intended to refer to one or more of said
objects.
[0021] It is appreciated that any vector and/or matrix notation
utilized herein is exemplary in nature and is employed solely for
purposes of explanation. Accordingly, it is understood that the
approaches detailed in this disclosure are not limited to being
implemented solely using vectors and/or matrices, and that the
associated processes and computations may be equivalently performed
with respect to sets, sequences, groups, etc., of data,
observations, information, signals, etc.
[0022] Furthermore, it is appreciated that references to a "vector"
may refer to a vector of any size or orientation, e.g. including a
1.times.1 vector (e.g. a scalar), a 1.times.M vector (e.g. a row
vector), and an M.times.1 vector (e.g. a column vector). Similarly,
it is appreciated that references to a "matrix" may refer to matrix
of any size or orientation, e.g. including a 1.times.1 matrix (e.g.
a scalar), a 1.times.M matrix (e.g. a row vector), and an M.times.1
matrix (e.g. a column vector).
[0023] As used herein, a "circuit" may be understood as any kind of
logic implementing entity (analog or digital), which may be special
purpose circuitry or a processor executing software stored in a
memory, firmware, hardware, or any combination thereof.
Furthermore, a "circuit" may be a hard-wired logic circuit or a
programmable logic circuit such as a programmable processor, for
example a microprocessor (for example a Complex Instruction Set
Computer (CISC) processor or a Reduced Instruction Set Computer
(RISC) processor). A "circuit" may also be a processor executing
software, for example any kind of computer program, for example a
computer program using a virtual machine code such as for example
Java. Any other kind of implementation of the respective functions
which will be described in more detail below may also be understood
as a "circuit". It is understood that any two (or more) of the
described circuits may be combined into a single circuit with
substantially equivalent functionality, and conversely that any
single described circuit may be distributed into two (or more)
separate circuits with substantially equivalent functionality. In
particular with respect to the use of "circuitry" in the claims
included herein, the use of "circuit" may be understood as
collectively referring to two or more circuits.
[0024] A "processing circuit" (or equivalently "processing
circuitry") as used herein is understood as referring to any
circuit that performs an operation(s) on signal(s), such as e.g.
any circuit that performs processing on an electrical signal or an
optical signal. A processing circuit may thus refer to any analog
or digital circuitry that alters a characteristic or property of an
electrical or optical signal, which may include analog and/or
digital data. A processing circuit may thus refer to an analog
circuit (explicitly referred to as "analog processing
circuit(ry)"), digital circuit (explicitly referred to as "digital
processing circuit(ry)"), logic circuit, processor, microprocessor,
Central Processing Unit (CPU), Graphics Processing Unit (GPU),
Digital Signal Processor (DSP), Field Programmable Gate Array
(FPGA), integrated circuit, Application Specific Integrated Circuit
(ASIC), etc., or any combination thereof. Accordingly, a processing
circuit may refer to a circuit that performs processing on an
electrical or optical signal as hardware or as software, such as
software executed on hardware (e.g. a processor or microprocessor).
As utilized herein, "digital processing circuit(ry)" may refer to a
circuit implemented using digital logic that performs processing on
a signal, e.g. an electrical or optical signal, which may include
logic circuit(s), processor(s), scalar processor(s), vector
processor(s), microprocessor(s), controller(s), microcontroller(s),
Central Processing Unit(s) (CPU), Graphics Processing Unit(s)
(GPU), Digital Signal Processor(s) (DSP), Field Programmable Gate
Array(s) (FPGA), integrated circuit(s), Application Specific
Integrated Circuit(s) (ASIC), or any combination thereof.
Furthermore, it is understood that a single a processing circuit
may be equivalently split into two separate processing circuits,
and conversely that two separate processing circuits may be
combined into a single equivalent processing circuit.
[0025] As used herein, "memory" may be understood as an electrical
component in which data or information can be stored for retrieval.
References to "memory" included herein may thus be understood as
referring to volatile or non-volatile memory, including random
access memory (RAM), read-only memory (ROM), flash memory,
solid-state storage, magnetic tape, hard disk drive, optical drive,
etc., or any combination thereof. Furthermore, it is appreciated
that registers, shift registers, processor registers, data buffers,
etc., are also embraced herein by the "term" memory. It is
appreciated that a single component referred to as "memory" or "a
memory" may be composed of more than one different type of memory,
and thus may refer to a collective component comprising one or more
types of memory. It is readily understood that any single memory
"component" may be distributed or/separated multiple substantially
equivalent memory components, and vice versa. Furthermore, it is
appreciated that while "memory" may be depicted, such as in the
drawings, as separate from one or more other components, it is
understood that memory may be integrated within another component,
such as on a common integrated chip.
[0026] The term "base station" used in reference to an access point
of a mobile communication network may be understood as a macro base
station, micro base station, Node B, evolved NodeBs (eNB), Home
eNodeB, Remote Radio Head (RRH), relay point, etc.
[0027] As used herein, a "cell" in the context of
telecommunications may be understood as a sector served by a base
station. Accordingly, a cell may be a set of geographically
co-located antennas that correspond to a particular sectorization
of a base station. A base station may thus serve one or more
"cells" (or sectors), where each cell is characterized by a
distinct communication channel. Furthermore, the term "cell" may be
utilized to refer to any of a macrocell, microcell, femtocell,
picocell, etc.
[0028] It is appreciated that the ensuing description may detail
exemplary scenarios involving mobile device operating according to
certain 3GPP (Third Generation Partnership Project) specifications,
notably Long Term Evolution (LTE) and Long Term Evolution-Advanced
(LTE-A). It is understood that such exemplary scenarios are
demonstrative in nature, and accordingly may be similarly applied
to other mobile communication technologies and standards, such as
WLAN (wireless local area network), WiFi, UMTS (Universal Mobile
Telecommunications System), GSM (Global System for Mobile
Communications), Bluetooth, CDMA (Code Division Multiple Access),
Wideband CDMA (W-CDMA), etc. The examples provided herein are thus
understood as being applicable to various other mobile
communication technologies, both existing and not yet formulated,
particularly in cases where such mobile communication technologies
share similar features as disclosed regarding the following
examples.
[0029] The term "network" as utilized herein, e.g. in reference to
a communication network such as a mobile communication network, is
intended to encompass both an access component of a network (e.g. a
radio access network (RAN) component) and a core component of a
network (e.g. a core network component).
[0030] As utilized herein, the term "radio idle mode" or "radio
idle state" used in reference to a mobile terminal refers to a
radio control state in which the mobile terminal is not allocated
at least one dedicated communication channel of a mobile
communication network. The term "radio connected mode" or "radio
connected state" used in reference to a mobile terminal refers to a
radio control state in which the mobile terminal is allocated at
least one dedicated uplink communication channel of a mobile
communication network.
[0031] Unless explicitly specified, the terms "transmit" and "send"
encompass both direct and indirect transmission and sending.
Similarly, the term "receive" encompasses both direct and indirect
reception unless explicitly specified. As utilized herein, the term
"derived from" designates being obtained directly or indirectly
from a specific source. Accordingly, data derived from a source
includes data obtained directly from the source or indirectly from
the source, i.e. through one or more secondary agents.
[0032] Dual-Receive Dual-SIM-Dual-Standby (DR-DSDS) and Dual-SIM
Dual-Active (DSDA) designs for multi-SIM mobile terminals may each
incorporate two separate receiver subsystems. As a result, DR-DSDS
and DSDA mobile terminals may be able to concurrently receive a
separate data stream for each SIM.
[0033] A baseband modem (or collection of baseband modems dependent
on the specifics of each multi-SIM design) may thus be able to
support a separate mobile network connection for each SIM, which
may include performing various intra-frequency, inter-frequency,
and inter-RAT (radio access technology) radio measurements. A
multi-SIM mobile terminal may reduce power consumption and improve
radio measurement speed by coordinating radio measurements and
sharing measurement results between RATs of each SIM that are
equivalent. Accordingly, a baseband modem may include a measurement
management entity to coordinate radio measurements between certain
protocol layers of each RAT.
[0034] FIG. 1 shows a block diagram illustrating an internal
configuration of mobile terminal 100. Mobile terminal 100 may be a
multi-SIM mobile terminal, and accordingly may include at least
SIMA and SIMB. It is appreciated that mobile terminal 100 may
additionally include a third SIM SIMC, a fourth SIM SIMD, etc., and
that the operations detailed herein may be similarly applied to
further SIMs in an analogous manner, such as by sharing measurement
results between more than two SIMs.
[0035] As illustrated in FIG. 1, mobile terminal 100 may include
antenna 102, radio frequency (RF) transceiver 104, baseband modem
106, application processor 108, SIMA, and SIMB. As shown in in FIG.
1, the aforementioned components of mobile terminal 100 may be
implemented as separate components. However, it is appreciated that
the architecture of mobile terminal 100 depicted in FIG. 1 is for
purposes of explanation, and accordingly one or more of the
aforementioned components of mobile terminal 100 may be integrated
into a single equivalent component or divided into two separate
components with collective equivalence. It is understood that
mobile terminal 100 may have one or more additional components,
such as additional hardware, software, or firmware elements. For
example, mobile terminal 100 may further include various additional
components including processors/microprocessors,
controllers/microcontrollers, memory, other specialty or generic
hardware/processors/circuits, etc., in order to support a variety
of additional operations. Mobile terminal 100 may also include a
variety of user input/output devices (display(s), keypad(s),
touchscreen(s), speaker(s), external button(s), camera(s),
microphone(s), etc.), peripheral device(s), memory, power supply,
external device interface(s), subscriber identify module(s) (SIM)
etc.
[0036] It is appreciated that the aforementioned components of
mobile terminal 100, in particular, RF transceiver 104, baseband
modem 106, and application processor 108, may be implemented in a
number of different manners, such as by hardware, firmware,
software executed on hardware (e.g. a processor), or any
combination thereof. Various options include analog circuit(s),
digital circuit(s), logic circuit(s), processor(s),
microprocessor(s), controller(s), microcontroller(s), scalar
processor(s), vector processor(s), Central Processing Unit(s)
(CPU), Graphics Processing Unit(s) (GPU), Digital Signal
Processor(s) (DSP), Field Programmable Gate Array(s) (FPGA),
integrated circuit(s), or Application Specific Integrated
Circuit(s) (ASIC).
[0037] As will be detailed, in an aspect of the disclosure mobile
terminal 100 may be a mobile terminal device comprising a first SIM
(SIMA), a second SIM (SIMB), a radio processing circuit (RF
transceiver 104) and a baseband processing circuit (baseband modem
106) adapted to interact with the radio processing circuit. The
baseband processing circuit may be configured to provide one or
more first measurement targets of a first radio measurement of a
first SIM, identify one or more common measurement results from one
or more measurement results of a second radio measurement of the
second SIM, wherein at least one of the one or more common
measurement results corresponds to a measurement target of the one
or more first measurement targets of the first radio measurement,
provide the one or more common measurement results to the first
radio measurement as one or more measurement results of the first
radio measurement, and perform mobility operations with the one or
more measurement results of the first radio measurement or the one
or more measurement results of the second radio measurement. In a
further aspect of the disclosure, the baseband processing circuit
may be configured to provide one or more first inter-RAT
measurement targets of a first radio measurement of a master RAT of
the first SIM, identify one or more common measurement results from
one or more measurement results of a second radio measurement of a
second SIM, wherein at least one of the one or more common
measurement results corresponds to an inter-RAT measurement target
of the one or more first measurement targets of the first radio
measurement, provide the one or more common measurement results to
the first radio measurement as one or more inter-RAT measurements
results of the first radio measurement, and perform mobility
operations with the one or more measurement results of the first
radio measurement or the one or more measurement results of the
second radio measurement.
[0038] In an abridged overview of the operation of mobile terminal
100, mobile terminal 100 may be configured to receive and/or
transmit wireless signals according to multiple different wireless
access protocols or radio access technologies (RATs), including any
one of, or any combination of, LTE (Long Term Evolution), WLAN
(wireless local area network), WiFi, UMTS (Universal Mobile
Telecommunications System), GSM (Global System for Mobile
Communications), Bluetooth, CDMA (Code Division Multiple Access),
Wideband CDMA (W-CDMA), etc. The RAT capabilities of mobile
terminal 100 may be determined by one or more Subscriber Identity
Modules (SIM) included in mobile terminal 100, such as SIMA and
SIMB.
[0039] Further to the abridged overview of operation of mobile
terminal 100, RF transceiver 104 may receive radio frequency
wireless signals via antenna 102, which may be implemented as e.g.
a single antenna or an antenna array composed of multiple antennas.
As previously indicated, mobile terminal 100 may operate according
to a DSDA or DR-DSDS multi-SIM design. Accordingly, RF transceiver
104 may include two separate receiver subsystems RFA and RFB in
addition to at least one transmitter subsystem (e.g. one
transmitter subsystem for DR-DSDS or two transmitter subsystems for
DSDA, not explicitly shown in FIG. 1). Receiver subsystems RFA and
RFB of RF transceiver 104 may include various reception circuitry
elements, which may include e.g. analog circuitry, configured to
process externally received signals, such as mixing circuitry to
convert externally received RF signals to baseband and/or
intermediate frequencies. Receiver subsystems RFA and RFB of RF
transceiver 104 may also include amplification circuitry to amplify
externally received signals, such as power amplifiers (PAs) and/or
Low Noise Amplifiers (LNAs), although it is appreciated that such
components may also be implemented separately. RF transceiver 104
may additionally include at least one transmitter subsystem (not
explicitly shown in FIG. 1), which may include various transmission
circuitry elements configured to transmit internally received
signals, such as e.g. baseband and/or intermediate frequency
signals provided by baseband modem 106, which may include mixing
circuitry to modulate internally received signals onto one or more
radio frequency carrier waves and/or amplification circuitry to
amplify internally received signals before transmission. The at
least one transmitter subsystem of RF transceiver 104 may provide
such signals to antenna 102 for wireless transmission. Further
references herein to reception and/or transmission of wireless
signals by mobile terminal 100 may thus be understood as an
interaction between antenna 102, RF transceiver 104 (including RFA,
RFB, and the at least one transmitter subsystem), and baseband
modem 106 as detailed above. Although not explicitly depicted in
FIG. 1, RF transceiver 104 may be additionally be connected to
application processor 108.
[0040] For purposes of explanation, RFA may be assigned to SIMA and
RFB may be assigned to SIMB. Accordingly, RFA may perform reception
procedures for SIMA while RFB may perform reception procedures for
SIMB, e.g. by receiving and processing radio frequency signals for
SIMA and SIMB, respectively, and providing resulting baseband
signals to baseband modem 106 for further processing in accordance
with the radio access technology protocols for SIMA and SIMB. The
at least one transmitter subsystem of RF transceiver 104 may
perform transmission procedures for both SIMA and SIMB, which may
operate on a time-sharing basis (e.g. DR-DSDS) or a concurrent
parallel operation basis (e.g. DSDA).
[0041] Similarly, baseband modem 106 may include at least two
separate radio access technology (RAT) interfaces RATA and RATB. It
is appreciated that baseband modem 106 may be realized as multiple
separate baseband modem components, such as separate baseband
modems for each supported RAT of SIMA and SIMB. Alternatively,
baseband modem 106 may e.g. by realized as two separate baseband
modems, e.g. a first baseband modem for SIMA and a second baseband
modem for SIMB, where the first and second baseband modems support
each supported RAT of SIMA and SIMB (e.g. single-RAT or multi-mode
depending on the RAT capabilities of each of SIMA and SIMB).
Alternatively, baseband modem 106 may be realized as a single
baseband modem capable of supporting multiple SIMs and multiple
RATs in accordance with the RAT capabilities of SIMA and SIMB.
[0042] As will be detailed, each RAT interface RATA and RATB may be
composed of hardware, software, and/or firmware components, which
may be physically dedicated to one of SIMA or SIMB or shared
between SIMA and SIMB. For purposes of explanation, RATA may be
correspond to the master and slave (if any) RAT interfaces of SIMA
and RATB may correspond to the master and slave (if any) RAT
interfaces of SIMB. As used herein, the term "interface" refers to
the upper protocol stack (Layer 2 and Layer 3) and physical (Layer
1) layers for a radio access technology (RAT). RAT interface RATA
may therefore include the RAT interfaces supported by SIMA, i.e.
may be composed of the upper protocol stack and physical layers for
each RAT supported by SIMA. Similarly, RAT interface RATB may be
composed of the upper protocol stack and physical layers supported
by SIMB. Such will subsequently be explained in further detail.
[0043] RAT interfaces RATA and RATB may control mobile
communication operations of mobile terminal 100 as specified by
SIMA and SIMB. For example, RATA and RATB may directly or
indirectly control operation of antenna 102, RFA and RFB
(respectively), and the at least one transmitter subsystem of RF
transceiver 104 to transmit and receive mobile communication data
for SIMA and SIMB. Specifically, RAT interfaces RATA and RATB may
control mobile communication operations in accordance with Layers
1-3 of the one or more RATs supported by each of SIMA and SIMB.
[0044] SIMA and SIMB may each support one or more RATs. In an
exemplary configuration, SIMA may support GSM, UMTS, and LTE, while
SIMB may only support GSM. RAT interface RATA may therefore be
composed of RAT interfaces for GSM, UMTS, and LTE, while RATB may
only be composed of a RAT interface for GSM. Dependent on the
current state of mobile terminal 100, one RAT of RAT interface RATA
may assume a master RAT role while the remaining RATs may assume a
slave RAT role (which may change over time). Further to the
exemplary configuration, the LTE interface of RATA may assume the
master RAT role at an arbitrary time while the GSM and UMTS
interfaces of RATA may assume slave RAT roles. As SIMB only
supports GSM, the GSM interface of RATB may maintain the master RAT
role.
[0045] As shown in FIG. 2, baseband modem 106 may be structurally
composed of baseband digital processing circuit(s) (one or more)
106a and baseband memory 106b. Although not explicitly shown in
FIG. 2, baseband modem 106 may additionally include one or more
analog processing circuits.
[0046] Digital processing circuit(s) 106a may be composed of
various processing circuitry configured to perform baseband (herein
also including "intermediate") frequency processing, such as Analog
to Digital Converters (ADCs) and/or Digital to Analog Converters
(DACs), modulation/demodulation circuitry, encoding/decoding
circuitry, audio codec circuitry, digital signal processing
circuitry, etc. Digital processing circuit(s) 106a may include
hardware, software, or a combination of hardware and software.
Specifically, digital processing circuit(s) 106a of baseband modem
106 may include one or more logic circuits, processors,
microprocessors, controllers, microcontrollers, scalar processors,
vector processors, Central Processing Units (CPU), Graphics
Processing Units (GPU) (including General-Purpose Computing on GPU
(GPGPU)), Digital Signal Processors (DSP), Field Programmable Gate
Arrays (FPGA), integrated circuits, Application Specific Integrated
Circuits (ASIC), etc., or any combination thereof. It is understood
that a person of skill in the art will appreciate the corresponding
structure disclosed herein, be it in explicit reference to a
physical structure and/or in the form of mathematical formulas,
prose, flow charts, or any other manner providing sufficient
structure (such as e.g. regarding an algorithm). The components of
baseband modem 106 may be detailed herein in terms of functional
operation with recognition that a person of skill in the art will
readily appreciate the various possible structural realizations of
baseband modem 106 using digital processing circuitry that will
provide the desired functionality.
[0047] Baseband memory 106b may include volatile and/or
non-volatile memory, including random access memory (RAM),
read-only memory (ROM), flash memory, solid-state storage, magnetic
tape, hard disk drive(s), optical drive(s), register(s), shift
register(s), processor register(s), data buffer(s) etc., or any
combination thereof. Baseband memory 106b may be configured to
store software elements, e.g. program code, which may be retrieved
and executed using a processor component of digital processing
circuit(s) 106a. Although depicted as a single component in FIG. 1,
baseband memory 106b may be implemented as one or more separate
components in baseband modem 106. Baseband memory 106b may also be
partially or fully integrated with digital processing circuit(s)
106a.
[0048] As previously indicated, RATA and RATB may be composed of
the upper protocol stack (Layer 2 and 3) and physical (Layer 1)
layers for one or more RAT interfaces, where RATA and RATB may
control mobile communication operations of mobile terminal 100 in
accordance with the upper protocol stack and physical layers for
each RAT interface. Accordingly, RAT interfaces RATA and RATB may
be structurally composed of hardware, software, and/or firmware
elements to control and execute mobile communication operations. As
shown in FIG. 2, RATA, RATB, and MM (as will be subsequently
introduced) may be composed of circuitry and memory components of
baseband digital processing circuit(s) 106a and baseband memory
106b.
[0049] For example, each of RAT interfaces RATA and RATB may
include a control circuit of baseband digital processing circuit(s)
106a configured to retrieve (e.g. from baseband memory 106b) and
execute program code (e.g. software) corresponding to the upper
protocol stack and physical layer software modules for each RAT
interface in order to control transmission and reception of mobile
communication data. The control circuit may be e.g. a
microprocessor or microcontroller such as e.g. a protocol processor
configured to retrieve and execute program code for upper protocol
stack and physical layer software modules. Each of RAT interfaces
RATA and RATB may also include other digital processing circuits of
baseband digital processing circuits 106a, which the control
circuits may control in order to perform various signal processing
operations in accordance with the individual RAT interfaces of RATA
and RATB.
[0050] As previously indicated, each of RAT interfaces RATA and
RATB may include a master RAT and potentially one or more slave
RATs according to the RAT capabilities of SIMA and SIMB. Returning
to the exemplary configuration introduced above, SIMA may support
GSM, UMTS, and LTE operation while SIMB may only support GSM
operation. Accordingly, RATA may include upper protocol stack and
physical layers for each of GSM, UMTS, and LTE, while RATB may only
include upper protocol stack and physical layers for GSM. The
respective control circuits of RATA and RATB may therefore retrieve
and execute upper protocol stack and physical layer software
modules to control mobile communication operations in accordance
with the individual RAT interfaces of RATA and
[0051] RATB. It is appreciated that the control circuits may be
unified or discrete relative to RATA and RATB. For example, a
single processor of baseband digital processing circuit(s) 106a may
execute the upper protocol stack and physical layers for each RAT
of RATA and RATB, such as a single processor executing the LTE
interface of RATA as the master RAT of RATA, the GSM interface of
RATB as the master RAT of RATB, and the UMTS and GSM interfaces of
RATA as the slave RATs of RATA, e.g. as software modules.
Alternatively, individual processors of baseband digital processing
circuit(s) 106a may each execute the upper protocol stack and
physical layers for a single RAT of RATA and RATB, e.g. as software
modules. Alternatively, a first processor baseband digital
processing circuit(s) 106a may execute the upper protocol stack and
physical layers for each RAT of RATA while a second processor of
baseband digital processing circuit(s) 106a may execute the upper
protocol stack and physical layers for each RAT of RATB. Each
processor may then control one or more digital processing circuits
of baseband digital processing circuit(s) 106a in order to perform
a variety of signal processing operations in accordance with the
protocols of each RAT. Many such variations are recognized as
viable and are accordingly embraced herein.
[0052] It is thus appreciated that baseband digital processing
circuit(s) 106a and baseband memory 106b may be configured to
execute each of the master and slave RATs of RATA and RATB, where a
single respective RAT of RATA and RATB assumes a master RAT role
and the remaining respective RATs (if any) of RATA and RATB assume
a slave RAT role. Accordingly, RAT interfaces RATA and RATB of
baseband modem 106 may execute control directly or indirectly over
operation of baseband modem 106, receiver subsystems RFA and RFB of
RF transceiver 104, the at least one transmitter subsystem of RF
transceiver 104, and antenna 102 in order to support mobile
communication operations for SIM1 and SIM2. Each of RAT interfaces
RATA and RATB may have a single RAT interface assume a master RAT
role at any given time, where the remaining RATs (if any) may
assume a slave RAT role. The master RAT may assume primary control
of mobile communication resources while the slave RATs remain in a
passive state. Depending on the status of mobile terminal 100, the
RAT interface assuming the master RAT role may change over
time.
[0053] The respective master RAT interfaces of RATA and RATB,
herein referred to as RATA master and RATB master, may thus oversee
a variety of mobile communication operations of mobile terminal 100
according to the respective upper protocol stack and physical
layers of each master RAT interface. In particular, one such
operation may include radio measurements in which a master RAT
(RATA master or RATB master) may measure one or more detectable
cells on one or more target carrier frequencies. Such measurements
may include receiving a communication signal and performing
processing on the communication signal to measure a characteristic
of the signal, including signal power, signal quality, or signal
strength measurements. A master RAT may perform such measurements
as a part of mobility procedures such as e.g. cell selection, cell
reselection, handover, measurement reporting, network scan (e.g.
Public Land Mobile Network Scan), which may be triggered according
to various criteria designated by the respective RAT interface
layers. Radio measurements may be either intra frequency
measurements (measurements on the same carrier frequency as the
current serving cell of the master RAT), inter-frequency
measurements (measurements on different carrier frequencies from
the carrier frequency of the current serving cell), or inter-RAT
measurements (measurements on a different RAT). Such radio
measurements may be performed when a master RAT is in both radio
idle state and radio connected state, such as with measurement gaps
(radio connected state) or a Discontinuous Reception (DRX) cycle
(radio idle and connected state).
[0054] Each RAT interface may perform the radio measurements using
certain digital processing circuits of the one or more baseband
digital processing circuits 106a. The specific type of radio
measurements may vary depending on each the radio access technology
of each RAT interface. For example, a GSM interface may perform
Received Strength Signal Indicator (RSSI) measurements by
processing received communication signals at a processing circuit
in order to obtain one or more measurement values. A UMTS interface
may perform Received Signal Code Power (RSCP), Energy per Chip over
Noise (EcNo), and RSSI measurements by processing received
communication signals at a processing circuit in order to obtain
one or more measurement values. An LTE interface may perform
Reference Signal Received Power (RSRP), Reference Signal Received
Quality (RSRQ), and RSSI measurements by processing received
communication signals at a processing circuit in order to obtain
one or more measurement values. The measurements may include
serving cell measurements, neighbor cell measurements, network
scans (e.g. Public Land Mobile Network (PLMN) scans), and/or any
other type of radio measurement in which a received signal is
processed in order to measure a characteristic of the received
signal. The radio measurements may include measurements in which a
single cell is measured, such as by measuring a cell using a
physical identity of a cell, or in which one or more carrier
frequencies are measured, such as by detecting measuring multiple
cells on one or more carrier frequencies.
[0055] The dual reception multi-SIM design (DR-DSDS, DSDA, etc.) of
mobile terminal 100 may allow both RATA master and RATB master to
perform radio measurements without interruption, i.e. without
disturbance from the other RAT interface. However, in order to
reduce power consumption and improve radio measurement speed,
baseband modem 106 may coordinate radio measurements and share
measurement results between RAT interfaces RATA and RATB, such as
by using a measurement manager MM as shown in FIG. 2. RATA and RATB
may utilize MM in order to request and retrieve measurement results
from one another as well as to coordinate radio measurement
execution in order to effectively perform radio measurements in a
synchronized manner.
[0056] Returning to the exemplary configuration introduced above,
SIMA may be a multi-RAT SIM that supports LTE, UMTS, and GSM, while
SIMB may be a GSM-only SIM. Accordingly, RATA may support LTE,
UMTS, and GSM interfaces in various master-slave RAT roles while
RATB may maintain a GSM interface in a master RAT role.
[0057] The master RAT interface for RATB, i.e. the RATB GSM master,
may perform various intra- and inter-frequency measurements for
GSM, which may be triggered and utilized for different mobility
procedures. As RATA may support multiple RAT interfaces, RATA
master may perform inter-RAT measurements in addition to intra- and
inter-frequency measurements. Accordingly, in a scenario where the
LTE interface has assumed the master role for RATA (i.e. RATA LTE
master), the RATA LTE master may temporarily hand control of the
receiver resources of mobile terminal 100 to either the RATA GSM
slave and/or the RATA UMTS slave to allow the slave RAT interfaces
to perform radio measurements or GSM or UMTS, respectively. The
RATA GSM/UMTS slave may then perform the radio measurements and
report back the resulting inter-RAT measurements to the RATA LTE
master, which may use the inter-RAT measurements for mobility
procedures, such as a potential inter-RAT reselection/handover
(e.g. dependent on the inter-RAT measurements and any relevant
serving cell measurements).
[0058] Accordingly, the intra- and inter-frequency measurements
performed by the RATB GSM master may be relevant for the inter-RAT
measurements performed by the RATA LTE master, in particular the
GSM inter-RAT measurements obtained by the RATA LTE master by
allotting control of receiver resources to the RATA GSM slave.
Accordingly, RATA and RATB may share measurement results in order
to reduce power consumption and improve radio measurement
completion time.
[0059] For example, the RATA LTE master may trigger inter-RAT
measurements, such as part of mobility procedures in either a radio
connected state or radio idle state. The RATA LTE master may send
an inter-RAT measurement request to the RATA GSM slave to perform
the inter-RAT measurements and report the inter-RAT measurement
results back to the RATA LTE master. The RATA GSM slave may have a
first set of target carrier frequencies to measure during inter-RAT
measurements as triggered by the RATA LTE master. Independently of
the inter-RAT procedure of RATA, the RATB GSM master may
additionally perform intra- and/or inter-frequency measurements in
accordance with mobility procedures. Accordingly, the RATB GSM
master may additionally have a second set of target carrier
frequencies to measure during the intra- and/or inter-frequency
measurements, where one or more target carrier frequencies are
common to both the first and second sets of target carrier
frequencies, i.e. common target carrier frequencies. Accordingly,
as opposed to performing two separate radio measurements on each of
the common target carrier frequencies (i.e. a first measurement by
RATA GSM slave during inter-RAT measurements triggered by RATA LTE
master and a second measurement by RATB GSM master during intra-
and/or inter-frequency measurements), only one of RATA or RATB may
perform the GSM radio measurements and provide the measurements
results to the other of RATA and RATB.
[0060] Baseband modem 106 may therefore include measurement manager
MM, which may interact with RATA and RATB as shown in FIG. 2 in
order to coordinate radio measurements and share measurement
results between RATA and RATB. Such sharing of measurements results
may reduce power consumption and improve radio measurement
speed.
[0061] FIG. 3 shows a block diagram illustrating the layer
architecture of the upper protocol stack and physical layers of RAT
interfaces RATA and RATB in addition to measurement manager MM. As
previously indicated, each of RAT interfaces RATA and RATB may be
composed of the upper protocol stack (Layer 2 and Layer 3) and
physical (Layer 1) layers of one or more RATs, e.g. depending on
the RAT capabilities of SIMA and SIMB. It is appreciated that each
of RATA and RATB may have a number of upper protocol stack and
physical layer sets corresponding to the number of RATs supported
by SIMA and SIMB respectively.
[0062] The upper protocol stack and physical layers for each of
RATA and RATB may correspond to software modules executed on a
processor (e.g. one or more control circuit of baseband digital
processing circuit(s) 106a) in addition to one or more digital
processing circuits of baseband digital processing circuit(s) 106a
configured to perform signal processing operations. As shown in
FIG. 3, measurement manager MM may act as an interconnect between
the respective physical layers of RATA and RATB. MM may thus
similarly be structurally implemented as software, such as program
code corresponding to a software module defining the operation of
MM. MM may similarly be executed by a control circuit (or
processor) of baseband digital processing circuit(s) 106a, and may
be configured to interact with the upper protocol stack and
physical layers of each master and slave RAT of RATA and RATB in
order to coordinate radio measurements and share measurement
results.
[0063] Each of RATA and RATB may perform radio measurements at the
physical layer, i.e. Layer 1 or "L1", and accordingly MM may be
able to retrieve and provide relevant measurement results between
the RATA L1 and RATB L1. It is appreciated that the L1s for the
individual RATs of RATA, i.e. each of the master and slave RAT
physical layers, may be implemented separately, i.e. stored and
executed as separate software modules, and that RATB may have an
analogous architecture. It is thus appreciated that MM may be
connected to each available L1 layer for both of RATA and RATB, and
accordingly may be able to coordinate and share radio measurements
across multiple different RATs.
[0064] MM may thus be a software module configured to perform data
organization procedures. For example, MM may be configured to
access measurement results obtained from the respective master and
slave RATs of RATA and RATB, and may be configured to identify the
measurement target (such as cell identity or carrier frequency)
that was measured to obtain the each measurement result. Such may
include comparing identity information of a measurement target to
each measurement target of a plurality of measurement results to
identify matching measurement targets. MM may also be configured to
retrieve certain measurement results, such as by retrieving certain
measurement results that correspond to a measurement target of
interest. MM may be configured to receive such measurement results
from one or more layers of the master and slave RAT interfaces of
RATA and RATB, and may be configured to provide retrieved
measurement results to another layer of the master and slave RAT
interfaces of RATA and RATB. Such data organization procedures are
understood as conventional and will be appreciated by those of
skill in the art.
[0065] The functionality of MM will now be described relative to
several exemplary scenarios. Returning to the exemplary
configuration introduced above, SIMA may support LTE, UMTS, and
GSM, while SIMB may only support GSM. Accordingly, RATA may include
LTE, UMTS, and GSM upper protocol stack and physical layers
(discrete or unified with one another), while RATB may only include
GSM upper protocol stack and physical layers. The LTE interface may
assume the master RAT role for RAT interface RATA while the GSM and
UMTS interfaces may assume slave RAT roles for each of the
following exemplary scenarios. The GSM interface may assume the
master RAT role for RAT interface RATB.
[0066] FIG. 4 shows message sequence chart 400 illustrating the
operation of MM. In the exemplary scenario of message sequence
chart 400, RATA LTE master may trigger inter-RAT measurements.
Accordingly, the evolved Radio Resource Control (eRRC) entity of
the Layer 3 protocol stack layer of the RATA LTE master (RATA LTE
eRRC) may transmit an inter-RAT measurement request 402 to the
Layer 1 physical layer of the RATA LTE master (RATA LTE L1).
Inter-RAT measurement request 402 may request inter-RAT
measurements be performed for GSM. In a conventional scenario, RATA
LTE L1 may signal the RATA GSM slave (e.g. RATA GSM Layer 1) to
perform radio measurements. However, RATA LTE L1 may instead
transmit radio measurement request 406 to measurement manager MM.
Radio measurement request 406 may contain a first set of
measurement targets, which may include one or more GSM carrier
frequencies and/or one or more specific GSM cells (e.g. as
identified by cell identification information) for which radio
measurements are desired.
[0067] Upon receipt of the inter-RAT measurement request 406, MM
may transmit an initial confirmation 408 to RATA LTE L1 indicating
confirmation of measurement request 406. MM may then determine
whether any measurement results for the first set of measurement
targets are available. Specifically, MM may determine whether RATB
GSM L1 has previously performed radio measurement on any of the
first set of measurement targets.
[0068] RATB GSM L1 may have previously performed radio measurements
on a second set of measurement targets, which may include one or
more GSM carrier frequencies and/or one or more specific GSM cells
(e.g. as identified by cell identification information). For
example, RATB GSM L1 may have previously performed intra- and/or
inter-frequency measurements on each of the GSM carrier frequencies
and/or specific GSM cells of the second set of measurement targets,
such as according to e.g. a DRX cycle measurement pattern (as will
be later detailed). Accordingly, RATB GSM L1 may have previously
transmitted a measurement report 404 containing measurement results
for the second set of measurement targets to MM.
[0069] MM may then compare the first set of measurement targets of
406 to the second set of measurement targets of 404 (or e.g. the
measurement targets corresponding to the measurement results
provided in 404) to identify if any common measurement targets
exist at 410, i.e. if any measurement targets are included in both
the first and second sets of measurement targets.
[0070] After identifying any common measurement targets based on
404 and 406 at 410, MM may identify any corresponding common
measurement results at 410, which may each be e.g. radio
measurements identifying a received signal characteristic of a
given GSM cell such as e.g. signal power, signal quality, or a
signal strength indicator. MM may then transmit a measurement
report 412 containing any corresponding common measurement results
to RATA LTE L1.
[0071] In the exemplary scenario of message sequence chart 400,
each of the first set of measurement targets requested in 406 may
be included in the second set of measurement targets reported in
404, i.e. each of the first measurement targets may be a common
measurement target. Accordingly, MM may provide a measurement
report 412 that contains measurement results for each of the first
set of measurement targets. RATA LTE L1 may thus receive
measurement report 412 and transmit inter-RAT measurement report
414 to RATA LTE eRRC containing the inter-RAT measurements for GSM.
As the first set of measurement targets were included in the second
set of measurement targets, RATA LTE L1 may not need to hand
control to RATA GSM L1 (RATA GSM slave) to perform the inter-RAT
measurements. All reception resources for RATA, including RATA GSM,
RATA UMTS, and RATA LTE, at baseband modem 106 may thus remain in
inactive as opposed to becoming activated to perform the inter-RAT
measurements, thus conserving power. Additionally, RATA GSM
reception resources may not have to perform any reception or
processing of wireless signals, which may be a time-consuming
procedure. In contrast, measurement results for the first set of
measurement targets may already be available. Accordingly, radio
measurement completion time may be reduced, which may accelerate
mobility procedures. For example, RATA may be able to perform any
necessary inter-RAT cell reselection/handover (e.g. from LTE to
GSM) at an earlier point in time due to the expedited receipt of
the inter-RAT measurements.
[0072] It is appreciated that alternative architectures are
additionally possible. For example, MM may locally store the actual
measurement results provided by e.g. RATB GSM L1 and subsequently
provide the actual measurement results to e.g. RATA LTE L1 upon
request. Alternatively, RATB GSM L1 may transmit a measurement
report 404 that only contains the carrier frequency and/or cell
identify information of each measured cell for which RATB GSM L1
obtained a measurement result for. In the event that MM receives a
measurement request 406 from e.g. RATA LTE L1, MM may compare the
measurement targets of 406 to the reported carrier frequency and/or
cell identity information of 404 to identify any common measurement
targets. If MM identifies common measurement targets, MM may then
retrieve the measurement results for the common measurement targets
from e.g. RATB GSM L1, which may e.g. involve another
bi-directional signaling involving a measurement result request
from MM to e.g. RATB GSM L1 and a connected measurement report from
e.g. RATB GSM L1 to MM containing common measurement results.
Alternatively, baseband modem 106 may provide a unified physical
layer, which may be shared between one or more L1 s of RATA and
RATB and allow for a substantially direct connection between e.g.
RATA LTE L1 and RATB GSM L1 to exchange measurement results.
Accordingly, MM may assume a supervisory role involving the direct
interconnect between e.g. RATA LTE L1 and RATB GSM L1.
[0073] MM may also include a validity check to ensure that
measurement results provided by e.g. RATB GSM L1 remain valid. For
example, MM may assign each measurement result reported by e.g.
RATB GSM L1 a validity time, and may only provide such measurement
results to e.g. RATA GSM L1 if the measurement results remain valid
according to the validity time. Such may ensure that mobility of
mobile terminal 102 may not significantly affect the accuracy of
shared measurement results.
[0074] Depending on the measurement configuration of RATB GSM L1,
some, all, or none of the first set of measurement targets
requested by RATA LTE L1 may be common measurement targets to the
second set of measurement targets reported by RATB GSM L1.
Accordingly, FIG. 5 shows message sequence chart 500 illustrating
the operation of MM in another exemplary scenario. Similarly to the
exemplary scenario of message sequence chart 400, RATA LTE master
may trigger inter-RAT measurements. Accordingly, the RATA LTE RRC
may transmit an inter-RAT measurement request 502 to RATA LTE L1.
RATA LTE L1 may transmit radio measurement request 506 to MM, which
may include a first set of measurement targets including one or
more GSM carrier frequencies and/or one or more specific GSM cells
for which radio measurements are desired.
[0075] Upon receipt of radio measurement request 506, MM may
determine whether any measurement results for the first set of
measurement targets are available. Specifically, MM may determine
whether RATB GSM L1 has previously reported radio measurements for
any of the first set of measurement targets.
[0076] Similarly to the exemplary scenario of message sequence
chart 400, RATB GSM L1 may have previously performed a radio
measurements on a second set of measurement targets, which may
include one or more GSM carrier frequencies and/or one or more
specific GSM cells. Accordingly, RATB GSM L1 may have previously
transmitted a measurement report 504 containing measurement results
for the second set of measurement targets to MM.
[0077] MM may then compare the first set of measurement targets of
506 to the second set of measurement targets of 504 (or e.g. the
measurement targets corresponding to the measurement results
provided in 504) to identify if any common measurement targets
exist at 510, i.e. if any measurement targets are included in both
the first and second sets of measurement targets. MM may also
identify any measurement results for the common measurement
targets, such as measurement results provided in 504 (or indicated
as being present at RATB GSM L1 by 504).
[0078] However, in contrast to the exemplary scenario of message
sequence chart 400, only part of the first set of measurement
targets requested in 506 may be common measurement targets, i.e.
may be measurement targets of the second set of measurement targets
reported by RATB GSM L1 in 504. Accordingly, MM may transmit a
radio measurement request 510 to RATB GSM L1 specifying the
remaining measurement targets, i.e. the measurement targets of the
first set of measurement targets that were not included in the
second set of measurement targets. MM may also transmit
confirmation 512 to RATA LTE L1 indicating confirmation of radio
measurement request 506.
[0079] RATB GSM L1 may then perform radio measurement on the
remaining measurement targets specified by MM in 510. RATB GSM L1
may then provide measurement results for the remaining measurement
targets to MM in measurement report 514. MM may then aggregate the
measurement results for the common measurement targets (initially
provided by RATB GSM L1 in 504) and the measurement results for the
remaining measurement targets (provided by RATB GSM L1 in 514) and
transmit measurement report 516 containing measurement results for
all of the first set of measurement targets (composed of the common
measurement targets and the remaining measurement targets) to RATA
LTE L1. RATA LTE L1 may then transmit inter-RAT measurement report
518 to RATA LTE eRRC containing measurement results for the first
set of measurement targets.
[0080] Similarly to the exemplary scenario of message sequence
chart 400, the operation of MM may allow RATA to avoid performing
inter-RAT measurements, such as by granting RATA GSM slave
temporary control of reception resources, which may result in
excessive power consumption and require additional reception and
processing time to perform the connected inter-RAT measurements.
Similarly, as opposed to initiating inter-RAT measurements by RATA
GSM L1 on the remaining measurement targets (e.g. upon
determination by MM with 504 and 506 that one or more of the first
set of measurement targets requested by RATA LTE L1 are not
included in the second set of measurement targets reported by RATB
2G L1), MM may instead instruct RATB GSM L1 to perform radio
measurement on the remaining measurement targets. RATA GSM L1 may
accordingly remain inactive, thus conserving power. The remaining
master RAT interfaces for RATA including RATA LTE and RATA UMTS may
additionally be inactive. Furthermore, measurement results for the
common measurement targets may already be available via RATB GSM L1
at 504, thus reducing the amount of time needed to acquire
measurement results for all of the first set of measurement targets
at RATA LTE eRRC. Mobility procedures may thus be accelerated.
[0081] FIG. 6 shows message sequence chart 600 illustrating the
operation of MM in another exemplary scenario. Similarly to the
exemplary scenarios of message sequence charts 400 and 500, RATA
LTE eRRC may trigger inter-RAT measurements by transmitting
inter-RAT measurement request 602 to RATA LTE L1. RATA LTE L1 may
then transmit radio measurement request 606 to MM, which may
include a first set of measurement targets including one or more
GSM carrier frequencies and/or one or more specific GSM cells for
which radio measurements are desired.
[0082] MM may then determine whether any measurement results for
the first set of measurement targets are available at 608, such as
whether RATB GSM L1 has previously reported radio measurements for
any of the first set of measurement targets. MM may thus compare
the first set of measurement targets of 606 to the second set of
measurement targets reported in 604 to identify if any common
measurement targets exist at 608.
[0083] However, RATB GSM L1 may not currently be performing any
radio measurements. For example, RATB GSM L1 may not currently have
a DRX cycle configured (and/or e.g. any previously measurement
results reported by RATB GSM L1 are invalid as will be detailed).
Alternatively, RATB GSM L1 may be at the start of a DRX cycle, and
accordingly may not be available to perform any radio
measurements.
[0084] As RATB GSM L1 is not available to perform any radio
measurements, MM may not be able to provide RATA LTE L1 with any
measurement results for the first set of measurement targets. MM
may then transmit confirmation 610 to RATA LTE L1 indicating the
status of radio measurement request 606.
[0085] Accordingly, MM may transmit measurement request 612 to RATA
GSM L1 (RATA GSM slave) to perform radio measurements for the first
set of measurement targets. RATA GSM L1 may thus utilize a
measurement gap or DRX cycle provided by RATA LTE L1 (RATA LTE
master) to perform the intra-RAT measurements for the first set of
measurement targets. RATA GSM L1 may provide the measurement
results for the first set of measurement targets to MM as
measurement report 614, which may provide the measurement results
to RATA LTE L1 as measurement report 616. RATA LTE L1 may then
provide the measurement results for the first set of measurement
targets to RATA LTE eRRC as inter-RAT measurement report 618.
Alternatively, RATA GSM L1 may provide the measurements results for
the first set of measurement targets directly to RATA LTE L1 (i.e.
not via MM) or directly to RATA LTE eRRC, e.g. through an existing
upper protocol stack and physical layer interconnect.
[0086] Measurement manager MM may be implemented in numerous
alternative manners. For example, instead of providing an
interconnect between RATA LTE L1 and RATB GSM L1 as detailed
regarding FIGS. 4-6, MM may alternatively act as an interconnect
between RATA GSM L1 and RATB GSM L1. Further alternative manners
are additionally recognized as possible.
[0087] FIG. 7 shows timing chart 700 illustrating such an example
in which MM may act as interconnect between RATA GSM L1 and RATB
GSM L1. In the scenario of timing chart 700, RATB GSM L1 may be
configured to perform intra- and/or inter-frequency measurements
according to a Discontinuous Reception (DRX) cycle or measurement
gap configuration. Accordingly, RATB GSM L1 may be configured to
perform intra- and/or inter-frequency measurements according to a
periodic schedule, such as a measurement gap configuration or DRX
cycle provided by the mobile communication network. RATB GSM L1 may
therefore perform radio measurements on a second set of measurement
targets according to a set periodic schedule. As shown in FIG. 7,
RATB GSM L1 may thus periodically obtain measurement results for at
least carrier frequencies F1 and F2, i.e. F1 and F2 are measurement
targets of the second set of measurement targets of RATB GSM
L1.
[0088] Concurrently, RATA LTE master may trigger inter-RAT
measurements. RATA LTE eRRC may thus transmit an inter-RAT
measurement request to RATA LTE L1, which may then hand over
control of reception resources to RATA GSM L1 to obtain and provide
measurement results for a first set of measurement targets.
[0089] The first set of measurement targets be e.g. F1 and F2, i.e.
RATA GSM L1 may need to obtain measurement results for F1 and F2.
As previously detailed, RATB GSM L1 may be configured to
periodically obtain measurement results for F1 and F2 according to
the assigned DRX cycle or measurement gap configuration.
[0090] Accordingly, MM may configure RATB GSM L1 to provide
measurement results for F1 and F2, i.e. the first set of
measurement targets, when available at RATB GSM L1. Accordingly,
RATB GSM L1 may obtain measurement result for F1 and F2 during each
DRX cycle or measurement gap period and provide the measurement
results for F1 and F2 to MM. As shown in FIG. 7, MM may then
provide the measurement results to RATA GSM L1. RATA GSM L1 may
then report the measurement results for F1 and F2 to RATA LTE L1
which may then provide the measurement results to RATA LTE eRRC,
thus completing the inter-RAT measurement procedure.
[0091] Additionally, RATA LTE eRRC may request the inter-RAT
measurements for F1 and F2 as part of a DRX cycle or measurement
gap configuration, i.e. RATA LTE eRRC may periodically request the
inter-RAT measurements for F1 and F2 according to a DRX cycle or
measurement gap period. Accordingly, MM may continue to provide the
periodically obtained F1 and F2 measurements from RATB GSM L1 to
RATA GSM L1. RATA GSM L1 may therefore continuously receive
periodic F1 and F2 measurements obtained by RATB GSM L1, thus
eliminating the need for RATA GSM L1 to perform radio
measurements.
[0092] Accordingly, MM may act as an interconnect between RATA GSM
L1 and RATB GSM L1 to facilitate measurement result sharing.
Additionally, MM may organize for periodic measurement result
sharing between RATA and RATB e.g. in accordance with a DRX cycle
or measurement gap configuration.
[0093] In the exemplary scenario detailed regarding timing chart
700, RATB GSM L1 may be configured to perform radio measurements on
each of F1 and F2, i.e. the first set of measurement targets
(targeted by RATA GSM L1) may be common measurement targets to the
second set of measurement targets (targeted by RATB GSM L1). MM may
therefore periodically retrieve measurement results for the first
set of measurement targets from RATB GSM L1 and provide the
measurement results to RATS GSM L1.
[0094] Such may not necessarily hold in all use cases. For example,
FIG. 8 shows timing chart 800 illustrating such a scenario where
only some of the first set of measurement targets may be common
measurement targets.
[0095] In the exemplary scenario of timing chart 800, RATA LTE eRRC
may similarly request inter-RAT measurements to RATA LTE L1. RATA
GSM L1 may therefore be requested to perform radio measurements on
a first set of measurement targets, e.g. carrier frequencies F1,
F2, F3, and F4.
[0096] Similarly to the exemplary scenario of timing chart 700,
RATB GSM L1 may be configured to perform intra- and/or
inter-frequency measurements according to a DRX cycle or
measurement gap configuration on a second set of measurement
targets, e.g. F1, F2, and F5. Accordingly, RATB GSM L1 may
periodically obtain measurement results for F1, F2, and F5
according to the DRX cycle or measurement gap period.
[0097] MM may therefore retrieve the measurement results for F1 and
F2 from RATB GSM L1 and provide the measurement results to RATA GSM
L1 as measurement results for common measurement targets. RATA GSM
L1 may therefore obtain measurement results for F1 and F2 without
having to perform radio measurement.
[0098] However, RATB GSM L1 may not be initially configured to
provide measurement results for F3 and F4 to RATA GSM L1 via MM as
F3 and F4 may not be common measurement targets. Accordingly, MM
may identify F3 and F4 as remaining measurement targets, i.e.
measurement targets of the first set of measurement targets that
are not common measurement targets, such as by receiving a request
from RATA GSM L1. MM may then request measurement results for F3
and F4 from RATB GSM L1.
[0099] As previously indicated, RATB GSM L1 may not be initially
configured to perform radio measurements on F3 and F3 as F3 and F4
are not part of the second set of measurement targets. However,
upon receipt of the request from MM, RATB GSM L1 may configure F3
and F4 as part of the measurement targets. As shown in FIG. 7, RATB
GSM L1 may perform a radio measurement on F3 and F4, such as by
adding F3 and F4 to the scheduled radio measurements of the DRX
cycle or measurement gap configuration. RATB GSM L1 may then
provide measurement results for F3 and F4 to MM, which may then
provide the measurement results for F3 and F4 to RATA GSM L1.
Accordingly, RATA GSM L1 may obtain measurement results for F1, F2,
F3, and F4 (i.e. the first set of measurement results) without
having to perform any radio measurements. RATA GSM L1 may then
provide the measurement results to RATA LTE L1 which may then
provide the measurement results to RATB LTE L1. Baseband modem 106
and RF transceiver 104 may thus reduce power consumption by
avoiding extra radio measurements. Additionally, radio measurement
completion time may be reduced.
[0100] The benefits of applying MM in the exemplary scenario of
timing chart 800 may be dependent on the position of RATB GSM L1
within the DRX cycle or measurement gap period. For example, if
RATA GSM L1 requests measurement results for F3 and F4 near the end
of the DRX cycle or measurement gap period of RATB GSM L1, there
may not exist a large latency time until RATB GSM L1 can perform
the intra- and/or inter-frequency measurements in accordance with
the configured DRX cycle or measurement gap pattern. Accordingly,
RATA GSM L1 may not have to delay for a long period of time before
receiving the requested measurement results, thus yielding greater
benefits in radio measurement completion time.
[0101] However, if RATB GSM L1 is at the start of the DRX cycle or
measurement gap pattern when RATA GSM L1 request the radio
measurements via MM, there may exist a long delay before RATB GSM
L1 is able to perform the requested radio measurements in
accordance with the configured DRX cycle or measurement gap
pattern. Accordingly, radio measurement completion time may be
extended if RATA GSM L1 waits for RATB GSM L1 to provide the radio
measurements. A similar scenario may occur when RATA GSM L1
requests radio measurements when RATB GSM L1 has not started the
DRX cycle or measurement gap pattern.
[0102] Accordingly, MM may not request and wait for measurement
results for remaining measurement targets from RATB GSM L1 when
RATB GSM L1 has not started the DRX cycle or measurement gap
pattern or is at the start of the DRX cycle or measurement gap
pattern. Instead, MM may direct RATA GSM L1 to perform the radio
measurements for the remaining measurement targets as opposed to
relying on RATB GSM L1 to perform the radio measurements.
Accordingly, RATB GSM L1 may initially provide MM with scheduling
information for the DRX cycle or measurement gap pattern. MM may
then determine whether RATB GSM L1 is at the start of or has not
started the DRX cycle or measurement gap pattern and either provide
radio measurements to RATA GSM L1 from RATB GSM L1 following a
delay or instruct RATA GSM L1 to perform the radio
measurements.
[0103] FIG. 9A shows timing chart 900 illustrating an exemplary
scenario in which RATB GSM L1 is at the start of or has not started
the DRX cycle or measurement gap pattern. Similarly to the
exemplary scenario of timing chart 800, MM may request and provide
measurement results for F1 and F2 (i.e. common measurement targets)
from RATB GSM L1 to RATA GSM L1.
[0104] RATA GSM L1 may then additionally request measurement
results for F3 and F4, i.e. the remaining measurement targets of
the first set of measurement targets, e.g. by requesting from MM.
However, MM may determine that RATB GSM L1 is at the start of or
has not started the DRX cycle or measurement gap pattern. For
example, RATB GSM L1 may provide MM with scheduling information
indicating the DRX cycle or measurement gap configuration.
Accordingly, MM may determine that the latency in waiting for RATB
GSM L1 to be available to perform the radio measurements is
excessive. Accordingly, MM may instruct RATA GSM L1 to perform the
radio measurements on F3 and F4. Accordingly, RATA GSM L1 may
perform the requisite radio measurements on F3 and F4, thus
obtaining measurement results for all of the first set of
measurement targets.
[0105] FIG. 9B shows timing chart 910 illustrating a variation on
the exemplary scenario of timing chart 900. In the exemplary
scenario of timing chart 910, the first set of measurement targets
may be F1, F2, F3, and F4, while the second set of measurement
targets may be F1, F2, F3, F4, and F5.
[0106] Similarly to the exemplary scenario of timing chart 900, MM
may provide RATA GSM L1 with measurement results for F1 and F2 from
RATB GSM L1 upon availability pending the DRX cycle or measurement
gap pattern of RATB GM L1. RATA GSM L1 may also request measurement
results for F3 and F4 from MM. As F3 and F4 are also measurement
targets of the second set of measurement targets, RATB GSM L1 may
be scheduled to perform radio measurement for F3 and F4. However,
MM may determine that RATB is at the start of or has not started
the DRX cycle or measurement gap pattern, and thus is not available
to provide the radio measurements for F3 and F3 without an
excessive delay.
[0107] Accordingly, MM may instruct RATA GSM L1 to perform the
radio measurements for F3 and F4 and provide the radio measurements
for F3 and F4 to MM. As F3 and F4 are also included in the second
set of measurement targets, MM may then provide the radio
measurements for F3 and F4 to RATB GSM L1. Accordingly, RATB GSM L1
may not need to perform radio measurements on F3 and F4 at a later
time, and may instead utilize the measurement results for F3 and F4
provided by RATA GSM L1. Such may similarly reduce power
consumption and improve radio measurement speed.
[0108] It is appreciated that the periodicity of DRX cycles and
measurement gap configurations may allow for RATA and RATB to
repeatedly share measurement results via MM e.g. according to the
specific periods for each.
[0109] The preceding exemplary scenarios have been directed towards
utilizing intra- and/or inter-frequency measurements for a first
RAT interface as intra-RAT measurements for a second RAT interface,
e.g. where the master RAT of the first RAT interface is different
than the master RAT of the second RAT interface. However, it is
appreciated that MM may similarly operate in order to share intra-
and/or inter-frequency measurements between master RATs that are
equivalent.
[0110] For example, SIMA and SIMB may instead each be configured to
support LTE, UMTS, and GSM. In an exemplary scenario, the
respective LTE interfaces of both RATA and RATB may assume the
master RAT role, with UMTS and GSM assuming slave roles in both
RATA and RATB.
[0111] RATA LTE master and RATB LTE master may initiate intra-
and/or inter-frequency measurements e.g. during mobility
procedures, where RATA LTE master may target a first set of
measurement targets for radio measurement and RATB LTE master may
target a second set of measurement targets for radio measurement.
Similarly to as detailed above, RATA LTE master may send a radio
measurement request to MM specifying the first set of measurement
targets. MM may determine whether any measurement results for the
first set of measurement targets are available, such as whether
RATB LTE master has previously obtained and provided measurement
results for any of the first set of measurement targets. If RATB
LTE master has previously provided MM measurement results for any
of the first set of measurement targets, e.g. by performing radio
measurements on one or more common measurement targets of the
second set of measurement targets, MM may provide RATA LTE master
with the measurement results for the common measurement targets. MM
may also determine whether any remaining measurement targets exist,
i.e. whether any of the first set of measurement targets are not
included in the second set of measurement targets. If so, MM may
determine whether RATB LTE master is available to perform further
radio measurements. If RATB LTE master is e.g. at the start of or
has not started the DRX cycle or measurement gap period, MM may
determine that RATB LTE master is unavailable for further
measurements and may instruct RATA LTE master to perform the radio
measurements on the remaining measurement targets. Alternatively,
if RATB LTE master is available, MM may request that RATB LTE
master perform radio measurements for the remaining measurement
targets and provide any measurement results back to MM. Upon
receipt thereof, MM may provide the measurement results for the
remaining measurement targets back to RATA LTE master. RATA LTE
master may thus not need to perform any radio measurement to obtain
measurement results for the first set of measurement targets, and
accordingly may reduce power consumption and improve radio
measurement speed. It is appreciate that MM may act as an
interconnect between certain layers of RAT interfaces RATA and RATB
in such a scenario, such as between RATA LTE L1 and RATB LTE L1 or
RATA LTE eRRC and RATB LTE eRRC.
[0112] FIG. 10 shows a flow chart illustrating method 1000 further
detailing the operation of baseband modem 106 of mobile terminal
100. As previously detailed regarding FIGS. 2 and 3, RAT interfaces
RATA and RATB may be implemented in baseband modem 106, such as by
executing software modules corresponding to the upper protocol
stack and physical layers at one or more processors (e.g. of
digital processing circuit(s) 106a) in order to control operation
of baseband modem 106. Similarly, MM may be implemented in baseband
modem 106 by executing a software module corresponding to MM in
order to interact with RAT interfaces RATA and RATB to coordinate
radio measurements and share measurement results.
[0113] After initiating in 1002, RATA master (e.g. any of a LTE,
UMTS, or GSM interface) may trigger a radio measurement in 1004
e.g. as part of mobility procedures. RATA master may send a radio
measurement request to MM, which may indicate a first set of
measurement targets for which RATA is targeting for measurement. In
1006. MM may receive the radio measurement request and retrieve any
measurement results for the first set of measurement targets in
1006, such as by determining whether RATB master has previously
provided or previously obtained any measurement results for the
first set of measurement targets, i.e. as one more measurement
results of the first set of measurement targets are common
measurement targets with a second set of measurement targets of
RATB master. MM may provide any available measurement results for
the first set of measurement targets to RATA master, i.e. as
measurement results for common measurement targets.
[0114] MM may then determine whether any remaining measurement
targets exist in 1008. If no remaining measurement targets exist,
method 1000 may terminate at 1016 as RATA master has obtained
measurement results for all of the first set of measurement
targets.
[0115] Alternatively, if remaining measurement targets exist, MM
may determine in 1010 whether RATB master is available to perform
further radio measurements, such as by determining whether RATB
master is at the start of or has not yet started a DRX cycle or
measurement gap pattern. If RATB master is not available, MM may
instruct RATA master to perform the radio measurements at 1012.
RATA master may therefore obtain the measurements without
assistance from RATB master and method 1000 may terminate at 1016.
If RATB master is available to perform radio measurements, MM may
instruct RATB master to perform radio measurements for the
remaining measurement targets in 1014. MM may then receive
measurement results for the remaining measurement targets from RATB
master and provide the measurement results to RATA master. Method
1000 may then terminate at 1016.
[0116] Accordingly, RATA may be able to obtain measurement results
(e.g. intra-frequency, inter-frequency, and/or inter-RAT) without
having to perform the radio measurements at either RATA master or a
RATA slave, thus reducing power consumption and improving radio
measurement speed. It is appreciated that the implementations
detailed herein are applicable to sharing any type of radio
measurement between two RAT interfaces, including intra-frequency,
inter-frequency, and inter-RAT, such as by identifying any common
measurement targets between RATA and RATB and sharing measurement
results for the common measurement targets from one of RATA and
RATB to the other.
[0117] While the above description may focus on sharing between the
RAT interfaces for two SIMs, e.g. SIMA and SIMB, it is appreciated
that the operations and devices detailed herein may similarly be
applied to more than two SIMs. For example, MM may be configured to
interact with SIMA, SIMB, and a third SIM SIMC, where MM may
receive radio measurement requests from any one of RATA, RATB, or a
third RAT interface corresponding to SIMC (i.e. the upper protocol
stack and physical layers of each master and slave RAT of SIMC),
and identify any common measurement targets and results with the
other RAT interfaces. It is appreciated that the further
functionality of MM detailed above may similarly be applied.
[0118] FIG. 11 shows method 1100 for performing radio measurements
of a first SIM. Method 1100 may include identifying one or more
first measurement targets of a first radio measurement of the first
SIM (1110), identifying one or more common measurement results from
one or more measurement results of a second radio measurement for a
second SIM (1120), wherein at least one of the one or more common
measurement results corresponds to a measurement target of the one
or more first measurement targets of the first radio measurement,
providing the one or more common measurement results to the first
radio measurement as one or more measurement results of the first
radio measurement (1130), and performing mobility operations with
the one or more measurement results of the first radio measurement
or the one or more measurement results of the second radio
measurement (1140).
[0119] In one or more further exemplary aspects of the disclosure,
one or more of the features described above in reference to FIGS.
1-10 may be further incorporated into method 1100. In particular,
method 1100 may be configured to perform further and/or alternate
processes as detailed regarding mobile terminal 100 and/or baseband
modem 106.
[0120] FIG. 12 shows method 1200 for performing radio measurements
of a first SIM. Method 1200 may include identifying one or more
inter-RAT first measurement targets of a first radio measurement of
a master RAT of the first SIM (1210), identifying one or more
common measurement results from one or more measurement results of
a second radio measurement of a second SIM (1220), wherein at least
one of the one or more common measurement results corresponds to an
inter-RAT measurement target of the one or more first measurement
targets of the first radio measurement, providing the one or more
common measurement results to the first radio measurement as one or
more inter-RAT measurement results of the first radio measurement
(1230), and performing mobility operations with the one or more
measurement results of the first radio measurement or the one or
more measurement results of the second radio measurement 1240.
[0121] In one or more further exemplary aspects of the disclosure,
one or more of the features described above in reference to FIGS.
1-10 may be further incorporated into method 1200. In particular,
method 1100 may be configured to perform further and/or alternate
processes as detailed regarding mobile terminal 100 and/or baseband
modem 106.
[0122] It is appreciated that the terms "user equipment", "UE",
"mobile terminal", etc., may apply to any wireless communication
device, including cellular phones, tablets, laptops, personal
computers, and any number of additional electronic devices capable
of wireless communications.
[0123] It is appreciated that implementations of methods detailed
herein are demonstrative in nature, and are thus understood as
capable of being implemented in a corresponding device. Likewise,
it is appreciated that implementations of devices detailed herein
are understood as capable of being implemented as a corresponding
method. It is thus understood that a device corresponding to a
method detailed herein may include a one or more components
configured to perform each aspect of the related method.
[0124] All acronyms and above abbreviations defined in the above
description additionally hold in all claims included herein.
[0125] The following examples pertain to further aspects of the
disclosure:
[0126] Example 1 is a method for performing radio measurements of a
first subscriber identity module (SIM), the method including
identifying one or more first measurement targets of a first radio
measurement of the first SIM, identifying one or more common
measurement results from one or more measurement results of a
second radio measurement of a second SIM, wherein at least one of
the one or more common measurement results corresponds to a
measurement target of the one or more first measurement targets of
the first radio measurement, providing the one or more common
measurement results to the first radio measurement as one or more
measurement results of the first radio measurement, and performing
mobility operations with the one or more measurement results of the
first radio measurement or the one or more measurement results of
the second radio measurement.
[0127] In Example 2, the subject matter of Example 1 can optionally
include wherein performing mobility operations with the one or more
measurement results of the first radio measurement or the one or
more measurement results of the second radio measurement includes
performing at least one of cell selection, cell reselection,
handover, or measurement report transmission with the one or more
measurement results of the first radio measurement or the one or
more measurement results of the second radio measurement.
[0128] In Example 3, the subject matter of Example 1 or 2 can
optionally include wherein providing the one or more common
measurement results to the first radio measurement as one or more
measurement results of the first radio measurement includes
providing the one or more common measurement results to the first
radio measurement as one or more inter-RAT measurement results of
the first radio measurement.
[0129] In Example 4, the subject matter of Example 1 or 2 can
optionally include wherein the first radio measurement is an
inter-radio access technology (inter-RAT) radio measurement for a
master RAT of the first SIM, and wherein providing the one or more
common measurement results to the first radio measurement as one or
more measurement results of the first radio measurement includes
providing the one or more common measurement results to the first
radio measurement as one or more inter-RAT measurement results of
the first radio measurement.
[0130] In Example 5, the subject matter of Example 4 can optionally
include wherein the second radio measurement is an intra-frequency
radio measurement or an inter-frequency radio measurement of a
master RAT of the second SIM, and wherein the master RAT of the
first SIM is a different radio access technology than the master
RAT of the second SIM.
[0131] In Example 6, the subject matter of any one of Examples 1 to
5 can optionally further include identifying one or more second
measurement targets of the second radio measurement of the second
SIM, and executing the second radio measurement on the one or more
second measurement targets to obtain the one or more measurement
results of the second radio measurement.
[0132] In Example 7, the subject matter of any one of Examples 1 to
6 can optionally include wherein the one or more first measurement
targets include one or more cells targeted for measurement or one
or more carrier frequencies targeted for measurement.
[0133] In Example 8, the subject matter of Example 7 can optionally
include wherein performing the mobility operations with the one or
more measurement results of the first radio measurement or the one
or more measurement results of the second radio measurement
includes performing at least one of cell selection to a cell of the
one or more cells, performing cell reselection to a cell of the one
or more cells, performing a handover to a cell of the one or more
cells, or transmitting a measurement report for a cell of the one
or more cells.
[0134] In Example 9, the subject matter of any one of Examples 1 to
5 can optionally further include identifying one or more second
measurement targets of the second radio measurement, executing the
second radio measurement on one or more of the first measurement
targets excluded from the one or more second measurement targets to
obtain one or more remaining measurement results, and providing the
one or more remaining measurement results to the first radio
measurement as one or more measurement results of the first radio
measurement.
[0135] In Example 10, the subject matter of Example 9 can
optionally further include comparing the one or more first
measurement targets to the one or more second measurement targets
to identify the one or more of the first measurement targets
excluded from the one or more second measurement targets
[0136] In Example 11, the subject matter of any one of Examples 1
to 10 can optionally include wherein the first radio measurement or
the second radio measurement is a radio measurement of a DRX
cycle.
[0137] In Example 12, the subject matter of any one of Examples 1
to 10 can optionally include wherein the first radio measurement or
the second radio measurement is a radio measurement of a
measurement gap configuration.
[0138] In Example 13, the subject matter of any one of Examples 1
to 5 can optionally further include identifying one or more second
measurement targets of the second radio measurement, and upon
determining that a first measurement target of the one or more
first measurement targets is excluded from the one or more second
measurement targets, executing the first radio measurement on the
first measurement target to obtain a measurement result for the
first radio measurement.
[0139] In Example 14, the subject matter of any one of Examples 1
to 5 can optionally further include identifying one or more second
measurement targets of the second radio measurement, executing the
first radio measurement on one or more remaining measurement
targets of the one or more first measurement targets to obtain one
or more remaining measurement results, wherein the one or more
remaining measurement targets are excluded from the one or more
second measurement targets, and providing the one or more remaining
measurement results to the first radio measurement as one or more
measurement results of the first radio measurement.
[0140] In Example 15, the subject matter of Example 14 can
optionally include wherein the one or more measurement results of
the first radio measurement include the one or more common
measurement results and the one or more remaining measurement
results.
[0141] In Example 16, the subject matter of Example 14 can
optionally include wherein the first radio measurement is an
inter-RAT measurement requested by a master RAT of the first SIM,
and wherein executing the first radio measurement on one or more
remaining measurement targets of the one or more first measurement
targets to obtain one or more remaining measurement results
includes executing the first radio measurement on the one or more
remaining measurement targets of the one or more first measurement
targets at a slave RAT of the first SIM.
[0142] In Example 17, the subject matter of Example 16 can
optionally include wherein providing the one or more common
measurement results to the first radio measurement as one or more
measurement results of the first radio measurement includes
providing the one or more common measurement results to the first
radio measurement as one or more inter-RAT measurement results of
the first radio measurement.
[0143] In Example 18, the subject matter of any one of Examples 1
to 17 can optionally include wherein the first radio measurement is
a LTE radio measurement, a UMTS radio measurement, or a GSM radio
measurement.
[0144] In Example 19, the subject matter of any one of Examples 1
to 18 can optionally include wherein the first radio measurement is
an intra-frequency radio measurement or an inter-frequency radio
measurement of a master RAT of the second SIM.
[0145] In Example 20, the subject matter of any one of Examples 1
to 19 can optionally include wherein the one or more first
measurement targets include one or more LTE cells, one or more LTE
carrier frequencies, one or more UMTS cells, one or more UMTS
carrier frequencies, one or more GSM cells, or one or more GSM
carrier frequencies.
[0146] In Example 21, the subject matter of any one of Examples 1
to 20 can optionally include wherein the one or more measurement
results of the first radio measurement or the one or more
measurement results of the second radio measurement include one or
more signal power measurement results, one or more signal strength
measurement results, or one or more signal quality measurement
results.
[0147] Example 22 is a mobile terminal device including the first
SIM, the second SIM, a radio processing circuit and a baseband
processing circuit configured to interact with the radio processing
circuit, the mobile terminal device configured to perform the
method of any one of Examples 1 to 21.
[0148] Example 23 is a baseband processing circuit including one or
more digital processing circuits, the one or more digital
processing circuits configured to perform the method of any one of
Examples 1 to 22.
[0149] Example 24 is a method for performing radio measurements of
a first subscriber identity module (SIM), the method including
identifying one or more first inter-RAT measurement targets of a
first radio measurement of a master RAT of the first SIM,
identifying one or more common measurement results from one or more
measurement results of a second radio measurement of a second SIM,
wherein at least one of the one or more common measurement results
corresponds to an inter-RAT measurement target of the one or more
first inter-RAT measurement targets of the first radio measurement,
providing the one or more common measurement results to the first
radio measurement as one or more inter-RAT measurement results of
the first radio measurement, and performing mobility operations
with the one or more measurement results of the first radio
measurement or the one or more measurement results of the second
radio measurement.
[0150] In Example 25, the subject matter of Example 24 can
optionally include wherein performing mobility operations with the
one or more measurement results of the first radio measurement or
the one or more measurement results of the second radio measurement
includes performing at least one of cell selection, cell
reselection, handover, or measurement report transmission with the
one or more measurement results of the first radio measurement or
the one or more measurement results of the second radio
measurement.
[0151] In Example 26, the subject matter of Example 24 or 25 can
optionally include wherein the second radio measurement is a radio
measurement of a master RAT of the second SIM.
[0152] In Example 27, the subject matter of any one of Examples 24
to 26 can optionally include wherein the one or more measurement
results of the second radio measurement of the second SIM include
one or more intra-frequency radio measurement results or one or
more inter-frequency radio measurement results.
[0153] In Example 28, the subject matter of any one of Examples 24
to 27 can optionally include wherein the second radio measurement
is an intra-frequency radio measurement or an inter-frequency radio
measurement of a master RAT of the second SIM, and wherein the
master RAT of the first SIM is a different radio access technology
than the master RAT of the second SIM.
[0154] In Example 29, the subject matter of any one of Examples 24
to 28 can optionally further include identifying one or more second
measurement targets of the second radio measurement of the second
SIM, and executing the second radio measurement on the one or more
second measurement targets to obtain the one or more measurement
results of the second radio measurement.
[0155] In Example 30, the subject matter of any one of Examples 24
to 29 can optionally include wherein the one or more first
inter-RAT measurement targets include one or more cells targeted
for measurement or one or more carrier frequencies targeted for
measurement.
[0156] In Example 31, the subject matter of Example 30 can
optionally include wherein performing mobility operations with the
one or more measurement results of the first radio measurement or
the one or more measurement results of the second radio measurement
includes performing at least one of cell selection to a cell of the
one or more cells, performing cell reselection to a cell of the one
or more cells, or transmitting a measurement report for a cell of
the one or more cells.
[0157] In Example 32, the subject matter of any one of Examples 24
to 28 can optionally further include identifying one or more second
measurement targets of the second radio measurement, executing the
second radio measurement on one or more of the first inter-RAT
measurement targets excluded from the one or more second
measurement targets to obtain one or more remaining measurement
results, and providing the one or more remaining measurement
results to the first radio measurement as one or more measurement
results of the first radio measurement.
[0158] In Example 33, the subject matter of Example 32 can
optionally further include comparing the one or more first
inter-RAT measurement targets to the one or more second measurement
targets to identify the one or more of the first inter-RAT
measurement targets excluded from the one or more second
measurement targets.
[0159] In Example 34, the subject matter of any one of Examples 24
to 33 can optionally include wherein the first radio measurement or
the second radio measurement is a radio measurement of a DRX
cycle.
[0160] In Example 35, the subject matter of any one of Examples 24
to 33 can optionally include wherein the first radio measurement or
the second radio measurement is a radio measurement of a
measurement gap configuration.
[0161] In Example 36, the subject matter of any one of Examples 24
to 28 can optionally further include identifying one or more second
measurement targets of the second radio measurement, upon
determining that a first inter-RAT measurement target of the one or
more first inter-RAT measurement targets is excluded from the one
or more second measurement targets, executing the first radio
measurement on the first inter-RAT measurement target to obtain a
measurement result for the first radio measurement.
[0162] In Example 37, the subject matter of any one of Examples 24
to 28 can optionally further include identifying one or more second
measurement targets of the second radio measurement, executing the
first radio measurement on one or more remaining measurement
targets of the one or more first measurement targets to obtain one
or more remaining measurement results, wherein the one or more
remaining measurement targets are excluded from the one or more
second measurement targets, and providing the one or more remaining
measurement results to the first radio measurement as one or more
measurement results of the first radio measurement.
[0163] In Example 38, the subject matter of Example 37 can
optionally include wherein the one or more measurement results of
the first radio measurement include the one or more common
measurement results and the one or more remaining measurement
results.
[0164] In Example 39, the subject matter of Example 37 can
optionally include wherein executing the first radio measurement on
the one or more remaining measurement targets of the one or more
first measurement targets to obtain the one or more remaining
measurement results includes executing the radio measurement on the
one or more remaining measurement targets of the one or more first
inter-RAT measurement targets at a slave RAT of the first SIM.
[0165] In Example 40, the subject matter of any one of Examples 24
to 28 can optionally include wherein the first radio measurement is
an LTE radio measurement, a UMTS radio measurement, or a GSM radio
measurement.
[0166] In Example 41, the subject matter of any one of Examples 24
to 40 can optionally include wherein the first radio measurement is
an intra-frequency radio measurement or an inter-frequency radio
measurement of a master RAT of the second SIM.
[0167] In Example 42, the subject matter of any one of Examples 24
to 41 can optionally include wherein the one or more inter-RAT
first measurement targets include one or more LTE cells, one or
more LTE carrier frequencies, one or more UMTS cells, one or more
UMTS carrier frequencies, one or more GSM cells, or one or more GSM
carrier frequencies.
[0168] In Example 43, the subject matter of any one of Examples 24
to 42 can optionally include wherein the one or more measurement
results of the first radio measurement or the one or more
measurement results of the second radio measurement include one or
more signal power measurement results, one or more signal strength
measurement results, or one or more signal quality measurement
results.
[0169] Example 44 is a mobile terminal device including the first
SIM, the second SIM, a radio processing circuit, and a baseband
processing circuit configured to interact with the radio processing
circuit, the mobile terminal device configured to perform the
method of any one of Examples 24 to 42.
[0170] Example 45 is a mobile baseband modem including one or more
digital processing circuits, the one or more digital processing
circuits configured to perform the method of any one of Examples 24
to 42.
[0171] Example 46 is a mobile terminal device including a first
SIM, a second SIM, a radio processing circuit and a baseband
processing circuit configured to interact with the radio processing
circuit, the baseband processing circuit configured to identify one
or more first measurement targets of a first radio measurement of
the first SIM, identify one or more common measurement results from
one or more measurement results of a second radio measurement of
the second SIM, wherein at least one of the one or more common
measurement results corresponds to a measurement target of the one
or more first measurement targets of the first radio measurement,
provide the one or more common measurement results to the first
radio measurement as one or more measurement results of the first
radio measurement, and perform mobility operations with the one or
more measurement results of the first radio measurement or the one
or more measurement results of the second radio measurement.
[0172] In Example 47, the subject matter of Example 46 can
optionally include wherein the radio processing circuit is
configured to process radio frequency signals and provide the radio
frequency signals as baseband signals to the baseband processing
circuit.
[0173] In Example 48, the subject matter of Example 46 can
optionally further include an antenna configured to receive
wireless signals and provide the wireless signals as radio
frequency signals to the radio processing circuit.
[0174] In Example 49, the subject matter of Example 46 can
optionally include wherein performing mobility operations with the
one or more measurement results of the first radio measurement or
the one or more measurement results of the second radio measurement
includes performing at least one of cell selection, cell
reselection, handover, or measurement report transmission with the
one or more measurement results of the first radio measurement or
the one or more measurement results of the second radio
measurement.
[0175] In Example 50, the subject matter of Example 49 can
optionally include wherein the baseband processing circuit is
configured to execute a protocol stack in order to control the
mobility operations.
[0176] In Example 51, the subject matter of any one of Examples 46
to 50 can optionally include wherein providing the one or more
common measurement results to the first radio measurement as one or
more measurement results of the first radio measurement includes
providing the one or more common measurement results to the first
radio measurement as one or more inter-RAT measurement results of
the first radio measurement.
[0177] In Example 52, the subject matter of any one of Examples 46
to 50 can optionally include wherein the first radio measurement is
an inter-RAT radio measurement of a master RAT of the first SIM,
and wherein providing the one or more common measurement results to
the first radio measurement as one or more measurement results of
the first radio measurement includes providing the one or more
common measurement results to the first radio measurement as one or
more inter-RAT measurement results of the first radio
measurement.
[0178] In Example 53, the subject matter of Example 52 can
optionally include wherein the second radio measurement is an
intra-frequency or inter-frequency radio measurement of a master
RAT of the second SIM, and wherein the master RAT of the first SIM
is a different radio access technology than the master RAT of the
second SIM.
[0179] In Example 54, the subject matter of any one of Examples 46
to 53 can optionally include wherein the baseband processing
circuit is further configured to provide one or more second
measurement targets of the second radio measurement of the second
SIM, and execute the second radio measurement on the one or more
second measurement targets to obtain the one or more measurement
results of the second radio measurement.
[0180] In Example 55, the subject matter of any one of Examples 46
to 54 can optionally include wherein the one or more first
measurement targets include one or more cells targeted for
measurement or one or more carrier frequencies targeted for
measurement.
[0181] In Example 56, the subject matter of Example 55 can
optionally include wherein performing the mobility operations with
the one or more measurement results of the first radio measurement
or the one or more measurement results of the second radio
measurement includes performing at least one of cell selection to a
cell of the one or more cells, performing cell reselection to a
cell of the one or more cells, performing a handover to a cell of
the one or more cells, or transmitting a measurement report for a
cell of the one or more cells.
[0182] In Example 57, the subject matter of any one of Examples 46
to 53 can optionally include wherein the baseband processing
circuit is further configured to provide one or more second
measurement targets of the second radio measurement, execute the
second radio measurement on one or more of the first measurement
targets excluded from the one or more second measurement targets to
obtain one or more remaining measurement results, and provide the
one or more remaining measurement results to the first radio
measurement as one or more measurement results of the first radio
measurement.
[0183] In Example 58, the subject matter of Example 57 can
optionally include wherein the baseband processing circuit is
further configured to compare the one or more first measurement
targets to the one or more second measurement targets to identify
the one or more of the first measurement targets that are excluded
from the one or more second measurement targets.
[0184] In Example 59, the subject matter of any one of Examples 46
to 58 can optionally include wherein the first radio measurement or
the second radio measurement is a radio measurement of a DRX
cycle.
[0185] In Example 60, the subject matter of any one of Examples 46
to 58 can optionally include wherein the first radio measurement or
the second radio measurement is a radio measurement of a
measurement gap configuration.
[0186] In Example 61, the subject matter of any one of Examples 46
to 53 can optionally include wherein the baseband processing
circuit is further configured to provide one or more second
measurement targets of the second radio measurement, upon
determining that a first measurement target of the one or more
first measurement targets is excluded from the one or more second
measurement targets, execute the first radio measurement on the
first measurement target to obtain a measurement result for the
first radio measurement.
[0187] In Example 62, the subject matter of any one of Examples 46
to 53 can optionally include wherein the baseband processing
circuit is further configured to provide one or more second
measurement targets of the second radio measurement, execute the
first radio measurement on one or more remaining measurement
targets of the one or more first measurement targets to obtain one
or more remaining measurement results, wherein the one or more
remaining measurement targets are excluded from the one or more
second measurement targets, and provide the one or more remaining
measurement results to the first radio measurement as one or more
measurement results of the first radio measurement.
[0188] In Example 63, the subject matter of Example 62 can
optionally include wherein the one or more measurement results of
the first radio measurement include the one or more common
measurement results and the one or more remaining measurement
results.
[0189] In Example 64, the subject matter of Example 62 can
optionally include wherein the first radio measurement is an
inter-RAT measurement requested by a master RAT of the first SIM,
and wherein executing the first radio measurement on one or more
remaining measurement targets of the one or more first measurement
targets to obtain one or more remaining measurement results
includes executing the first radio measurement on the one or more
remaining measurement targets of the one or more first measurement
targets at a slave RAT of the first SIM.
[0190] In Example 65, the subject matter of Example 64 can
optionally include wherein providing the one or more common
measurement results to the first radio measurement as one or more
measurement results of the first radio measurement includes
providing the one or more common measurement results to the first
radio measurement as one or more inter-RAT measurement results of
the first radio measurement.
[0191] In Example 66, the subject matter of any one of Examples 46
to 65 can optionally include wherein the first radio measurement is
a Long Term Evolution (LTE) radio measurement, a Universal Mobile
Telecommunications System (UMTS) radio measurement, or a Global
System for Mobile Communications (GSM) radio measurement.
[0192] In Example 67, the subject matter of any one of Examples 46
to 66 can optionally include wherein the first radio measurement is
an intra-frequency or an inter-frequency radio measurement for a
master RAT of the second SIM.
[0193] In Example 68, the subject matter of any one of Examples 46
to 67 can optionally include wherein the one or more first
measurement targets include one or more LTE cells, one or more LTE
carrier frequencies, one or more UMTS cells, one or more UMTS
carrier frequencies, one or more GSM cells, or one or more GSM
carrier frequencies.
[0194] In Example 69, the subject matter of any one of Examples 46
to 68 can optionally include wherein the one or more measurement
results of the first radio measurement or the one or more
measurement results of the second radio measurement include one or
more signal power measurement results, one or more signal strength
measurement results, or one or more signal quality measurement
results.
[0195] In Example 70, the subject matter of any one of Examples 46
to 69 can optionally include configured according to a multi-SIM
design that allows the first SIM and the second SIM to concurrently
receive data.
[0196] In Example 71, the subject matter of Example 70 can
optionally include configured according to a Dual-Receive Dual-Sim
Dual-Standby (DR-DSDS) or a Dual-Sim Dual-Active (DSDA) design.
[0197] Example 72 is a mobile terminal device including a first
SIM, a second SIM, a radio processing circuit and a baseband
processing circuit configured to interact with the radio processing
circuit, the baseband processing circuit configured to identify one
or more first inter-RAT measurement targets of a first radio
measurement of a master RAT of the first SIM, identify one or more
common measurement results from one or more measurement results of
a second radio measurement of the second SIM, wherein at least one
of the one or more common measurement results corresponds to a
measurement target of the one or more first measurement targets of
the first radio measurement, provide the one or more common
measurement results to the first radio measurement as one or more
inter-RAT measurements results of the first radio measurement, and
perform mobility operations with the one or more measurement
results of the first radio measurement or the one or more
measurement results of the second radio measurement.
[0198] In Example 73, the subject matter of Example 72 can
optionally include wherein the radio processing circuit is
configured to process radio frequency signals and provide the radio
frequency signals as baseband signals to the baseband processing
circuit.
[0199] In Example 74, the subject matter of Example 72 can
optionally further include an antenna configured to receive
wireless signals and provide the wireless signals as radio
frequency signals to the radio processing circuit.
[0200] In Example 75, the subject matter of Example 72 can
optionally include wherein performing mobility operations with the
one or more measurement results of the first radio measurement or
the one or more measurement results of the second radio measurement
includes performing at least one of cell selection, cell
reselection, handover, or measurement report transmission with the
one or more measurement results of the first radio measurement or
the one or more measurement results of the second radio
measurement.
[0201] In Example 76, the subject matter of Example 75 can
optionally include wherein the baseband processing circuit is
configured to execute a protocol stack in order to control the
mobility operations.
[0202] In Example 77, the subject matter of any one of Examples 72
to 77 can optionally include wherein the second radio measurement
is a radio measurement of a master RAT of the second SIM.
[0203] In Example 78, the subject matter of any one of Examples 72
to 77 can optionally include wherein the measurement results of the
second radio measurement of the second SIM include one or more
intra-frequency radio measurement results or one or more
inter-frequency radio measurement results.
[0204] In Example 79, the subject matter of any one of Examples 72
to 78 can optionally include wherein the second radio measurement
is an intra-frequency or an inter-frequency radio measurement of a
master RAT of the second SIM, and wherein the master RAT of the
first SIM is a different radio access technology than the master
RAT of the second SIM.
[0205] In Example 80, the subject matter of any one of Examples 72
to 79 can optionally include wherein the baseband processing
circuit is further configured to identify one or more second
measurement targets of the second radio measurement of the second
SIM, and execute the second radio measurement on the one or more
second measurement targets to obtain the one or more measurement
results of the second radio measurement.
[0206] In Example 81, the subject matter of any one of Examples 72
to 80 can optionally include wherein the one or more first
measurement targets include one or more cells targeted for
measurement or one or more carrier frequencies targeted for
measurement.
[0207] In Example 82, the subject matter of Example 81 can
optionally include wherein performing mobility operations with the
one or more measurement results of the first radio measurement or
the one or more measurement results of the second radio measurement
includes performing at least one of cell selection to a cell of the
one or more cells, performing cell reselection to a cell of the one
or more cells, performing handover to a cell of the one or more
cells, or transmitting a measurement report for a cell of the one
or more cells.
[0208] In Example 83, the subject matter of any one of Examples 72
to 79 can optionally include wherein the baseband processing
circuit is further configured to identify one or more second
measurement targets of the second radio measurement, execute the
second radio measurement on one or more of the first radio
measurement targets excluded from the one or more second
measurement targets to obtain one or more remaining measurement
results, and provide the one or more remaining measurement results
to the first radio measurement as one or more measurement results
of the first radio measurement.
[0209] In Example 84, the subject matter of Example 83 can
optionally include wherein the baseband processing circuit is
further configured to compare the one or more first measurement
targets to the one or more second measurement targets to identify
the one or more of the first measurement targets excluded from the
one or more second measurement targets.
[0210] In Example 85, the subject matter of any one of Examples 72
to 84 can optionally include wherein the first radio measurement or
the second radio measurement is a radio measurement of a
Discontinuous Reception (DRX) cycle.
[0211] In Example 86, the subject matter of any one of Examples 72
to 84 can optionally include wherein the first radio measurement or
the second radio measurement is a radio measurement of a
measurement gap configuration.
[0212] In Example 87, the subject matter of any one of Examples 72
to 79 can optionally include wherein the baseband processing
circuit is further configured to identify one or more second
measurement targets of the second radio measurement, upon
determining that a first measurement target of the one or more
first measurement targets is excluded from the one or more second
measurement targets, execute the first radio measurement on the
first measurement target to obtain a measurement result for the
first radio measurement.
[0213] In Example 88, the subject matter of any one of Examples 72
to 79 can optionally include wherein the baseband processing
circuit is further configured to identify one or more second
measurement targets of the second radio measurement, execute the
first radio measurement on one or more remaining measurement
targets of the one or more first measurement targets to obtain one
or more remaining measurement results, wherein the one or more
remaining measurement targets are excluded from the one or more
second measurement targets, and provide the one or more remaining
measurement results to the first radio measurement as one or more
measurement results of the first radio measurement.
[0214] In Example 89, the subject matter of Example 88 can
optionally include wherein the one or more measurement results of
the first radio measurement include the one or more common
measurement results and the one or more remaining measurement
results.
[0215] In Example 90, the subject matter of Example 88 can
optionally include wherein executing the first radio measurement on
the one or more remaining measurement targets of the one or more
first measurement targets to obtain the one or more remaining
measurement results includes executing the radio measurement on the
one or more remaining measurement targets of the one or more first
measurement targets at a slave RAT of the first SIM.
[0216] In Example 91, the subject matter of any one of Examples 72
to 90 can optionally include wherein the first radio measurement is
an LTE radio measurement, a UMTS radio measurement, or a GSM radio
measurement.
[0217] In Example 92, the subject matter of any one of Examples 72
to 90 can optionally include wherein the first radio measurement is
an intra-frequency radio measurement or an inter-frequency radio
measurement for a master RAT of the second SIM.
[0218] In Example 93, the subject matter of any one of Examples 72
to 92 can optionally include wherein the one or more first
measurement targets include one or more LTE cells, one or more LTE
carrier frequencies, one or more UMTS cells, one or more UMTS
carrier frequencies, one or more GSM cells, or one or more GSM
carrier frequencies.
[0219] In Example 94, the subject matter of any one of Examples 72
to 93 can optionally include wherein the one or more measurement
results of the first radio measurement or the one or more
measurement results of the second radio measurement include one or
more signal power measurement results, one or more signal strength
measurement results, or one or more signal quality measurement
results.
[0220] In Example 95, the subject matter of any one of Examples 72
to 93 can optionally include configured according to a multi-SIM
design that allows the first SIM and the second SIM to concurrently
receive data.
[0221] In Example 96, the subject matter of Example 95 can
optionally include configured according to a DR-DSDS or a DSDA
design.
[0222] While the invention has been particularly shown and
described with reference to specific embodiments, it should be
understood by those skilled in the art that various changes in form
and detail may be made therein without departing from the spirit
and scope of the invention as defined by the appended claims. The
scope of the invention is thus indicated by the appended claims and
all changes which come within the meaning and range of equivalency
of the claims are therefore intended to be embraced.
* * * * *